Parasites, Hosts and Diseases

"intestinal trematode"

Original Articles

Zoonotic Intestinal Trematodes in Stray Cats (Felis catus) from Riverside Areas of the Republic of Korea: Sung-Shik Shin, Dae-Sung Oh, Kyu-Sung Ahn, Shin-Hyeong Cho, Won-Ja Lee, Byoung-Kuk Na, Woon-Mok Sohn; Korean J Parasitol 2015;53(2):209-213.
Published online April 22, 2015; DOI: https://doi.org/10.3347/kjp.2015.53.2.209

Abstract
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The present study was performed to survey the infection status of zoonotic intestinal trematode (ZIT) in stray cats from 5 major riverside areas in the Republic of Korea. Total 400 stray cats were captured with live-traps in riverside areas of Seomjingang (‘gang’ means river) (203 cats) from June to October 2010, and of Yeongsangang (41), Nakdonggang (57), Geumgang (38), and Hangang (61 cats) from June to October 2011, respectively. Small intestines resected from cats were opened with a pair of scissors in a beaker with 0.85% saline and examined with naked eyes and under a stereomicroscope. More than 16 ZIT species were detected in 188 (92.6%) cats from Seomjingang areas, and the number of worms recovered was 111 per cat infected. In cats from riverside areas of Yeongsangang, Nakdonggang, Geumgang, and Hangang, more than 9, 8, 3, and 5 ZIT species were recovered, and the worm burdens were 13, 42, 11, and 56 specimens per infected cat, respectively. As the members of family Heterophyidae, more than 10 species, i.e., Metagonimus spp., Pygidiopsis summa, Heterophyes nocens, Stellantchasmus falcatus, Heterophyopsis continua, Acanthotrema felis, Centrocestus armatus, Procerovum varium, Cryptocotyle concava, and Stictodora lari, were recovered. More than 5 species of echinostomes, i.e., Echinostoma hortense, Echinochasmus japonicus, Echinochasmus sp., Echinoparyphium sp., and unidentified larval echinostomes, were collected. Plagiorchis spp. were detected in cats from areas of Seomjin-gang and Yeongsangang. From the above results, it has been confirmed that stray cats in 5 major riverside areas of Korea are highly infected with various species of ZITs.

Citations

Citations to this article as recorded by

Prevalence of parasitic infections in stray cats from Gimpo-si, Gyeonggi-do, Korea
Sooji Hong, Hyejoo Shin, Seungwan Ryoo, Chung-Won Lee, Jae-Young Park, Jong-Yil Chai, Bong-Kwang Jung
Parasites, Hosts and Diseases.2025; 63(2): 182. CrossRef
First Record of Pygidiopsis summa and Ascocotyle longa in Iraq
Ghadeer M. Al-Suwaij, Basim H. Abdullah
Academia Open.2025;[Epub] CrossRef
The Nuclear Ribosomal Transcription Units of Two Echinostomes and Their Taxonomic Implications for the Family Echinostomatidae
Yu Cao, Ye Li, Zhong-Yan Gao, Bo-Tao Jiang
Biology.2025; 14(8): 1101. CrossRef
Global distribution of zoonotic digenetic trematodes: a scoping review
Yue Hu, Rong-Jian Zhan, Shi-Lin Lu, Yi-Yang Zhang, Min-Yu Zhou, Hui Huang, Ding-Ding Wang, Tao Zhang, Zi-Xin Huang, Yun-Fei Zhou, Zhi-Yue Lv
Infectious Diseases of Poverty.2024;[Epub] CrossRef
Prevalence of heterophyid infection in tilapia fish “Orechromas niloticus” with emphasize of cats role as neglected reservoir for zoonotic Heterophyes heterophyes in Egypt
Mahmoud Abdelnaby El-Seify, Khaled Sultan, Nagwa Mohammed Elhawary, Neveen Salah Satour, Naema Mohammed Marey
Journal of Parasitic Diseases.2021; 45(1): 35. CrossRef
Prevalence of endoparasitic and viral infections in client-owned cats in metropolitan Bangkok, Thailand, and the risk factors associated with feline hookworm infections
Wanarit Jitsamai, Nutpiphat Khrutkham, Vachira Hunprasit, Ramaswamy Chandrashekar, Dwight Bowman, Woraporn Sukhumavasi
Veterinary Parasitology: Regional Studies and Reports.2021; 25: 100584. CrossRef
Euryhelmis squamula (Digenea: Heterophyidae) Recovered from Korean Raccoon Dog, Nyctereutes procyonoides koreensis, in Korea
Hyeon Cheol Kim, Eui Ju Hong, Si Yun Ryu, Jinho Park, Jeong Gon Cho, Do Hyeon Yu, Joon Seok Chae, Kyoung Seong Choi, Bae Keun Park
The Korean Journal of Parasitology.2021; 59(3): 303. CrossRef
Intestinal Flukes Recovered from a Herring Gull, Larus argentatus, in the Republic of Korea
Young-Il Lee, Min Seo, Jong-Yil Chai
The Korean Journal of Parasitology.2020; 58(1): 81. CrossRef
Infections of Two Isthmiophora Species (Digenea: Echinostomatidae) in Wild Mammals from Republic of Korea with Their Morphological Descriptions
Seongjun Choe, Ki-Jeong Na, Youngjun Kim, Dong-Hyuk Jeong, Jeong-Jin Yang, Keeseon S. Eom
The Korean Journal of Parasitology.2019; 57(6): 647. CrossRef
Infections with Centrocestus armatus Metacercariae in Fishes from Water Systems of Major Rivers in Republic of Korea
Woon-Mok Sohn, Byoung-Kuk Na, Shin-Hyeong Cho, Jung-Won Ju, Cheon-Hyeon Kim, Ki-Bok Yoon, Jai-Dong Kim, Dong Cheol Son, Soon-Won Lee
The Korean Journal of Parasitology.2018; 56(4): 341. CrossRef
Infection Status of Isthmiophora hortensis Metacercariae in Dark Sleepers, Odontobutis Species, from Some Water Systems of the Republic of Korea
Woon-Mok Sohn, Byoung-Kuk Na, Shin-Hyeong Cho, Jung-Won Ju
The Korean Journal of Parasitology.2018; 56(6): 633. CrossRef
Fishborne zoonotic heterophyid infections: An update
Jong-Yil Chai, Bong-Kwang Jung
Food and Waterborne Parasitology.2017; 8-9: 33. CrossRef
New Definitive Hosts and Differential Body Indices of Isthmiophora hortensis (Digenea: Echinostomatidae)
Woon-Mok Sohn, Byoung-Kuk Na, Sung-Shik Shin
The Korean Journal of Parasitology.2017; 55(3): 287. CrossRef

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Three Echinostome Species from Wild Birds in the Republic of Korea: Seongjun Choe, Dongmin Lee, Hansol Park, Mihyeon Oh, Hyeong-Kyu Jeon, Youngsun Lee, Ki-Jeong Na, Youngjun Kim, Hang Lee, Keeseon S. Eom; Korean J Parasitol 2014;52(5):513-520.
Published online October 22, 2014; DOI: https://doi.org/10.3347/kjp.2014.52.5.513

Abstract
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Three echinostome species, i.e., Patagifer bilobus, Petasiger neocomense, and Saakotrema metatestis, are newly recorded in the trematode fauna of the Republic of Korea. They were recovered from 3 species of migratory birds (Platalea minor, Podiceps cristatus, and Egretta garzetta), which were donated by the Wildlife Center of Chungbuk (WCC) and the Conservation Genome Resource Bank for Korean Wildlife (CGRB). Only 1 P. bilobus specimen was recovered from the intestine of a black-faced spoonbill (P. minor), and characterized by the bilobed head crown with a deep dorsal incision and 54 collar spines. Twenty P. neocomense were recovered from the intestine of a great crested grebe (P. cristatus), and they had a well-developed head crown with 19 spines and 2 testes obliquely located at the posterior middle of the body. Total 70 S. metatestis were collected from the bursa of Fabricius of 1 little egret (E. garzetta). It is characterized by stout tegumental spines covered in the entire leaf-shaped body, posterior extension of the uterus, presence of the uroproct and a well-developed head crown with 12 pairs of collar spines on each side. By the present study, these 3 echinostome species are newly added to the trematode fauna in Korea.

Citations

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Filling the void: Morphological and molecular phylogenetic analyses of helminths assemblage from the Egyptian egret Bubulcus ibis
Nada A. Ibrahim, Ismail M. Shalaby, Mahi A. Ghobashy, Azza A. Taeleb, Elham A. Elkhawass
Parasitology International.2025; 104: 102972. CrossRef
The Nuclear Ribosomal Transcription Units of Two Echinostomes and Their Taxonomic Implications for the Family Echinostomatidae
Yu Cao, Ye Li, Zhong-Yan Gao, Bo-Tao Jiang
Biology.2025; 14(8): 1101. CrossRef
First record of Patagifer bilobus (Rudolphi, 1819) Dietz, 1909 (Digenea: Echinostomatidae), with a morphological and molecular characterization from two threskiornithid species in Mexico
Ana Lucia Sereno-Uribe, Marcelo Tonatiuh González-García, Mirza Patricia Ortega-Olivares, Alejandra López-Jiménez, Martín García-Varela, Leopoldo Andrade-Gómez
Parasitology Research.2022; 121(7): 1921. CrossRef
EXAMINATION OF HELMINTH PARASITES IN THE FECAL SAMPLES OF MAGPIES (Pica pica), JACKDAWS (Corvus monedula), AND ROOKS (Corvus frugilegus) IN THE VICINITIES OF VAN PROVINCE/TURKEY
Ali Bilgin YILMAZ, Erkan AZİZOĞLU, Özdemir ADIZEL
Commagene Journal of Biology.2020;[Epub] CrossRef
Infections with Digenetic Trematode Metacercariae in Freshwater Fishes from Two Visiting Sites of Migratory Birds in Gyeongsangnam-do, Republic of Korea
Woon-Mok Sohn, Byoung-Kuk Na
The Korean Journal of Parasitology.2019; 57(3): 273. CrossRef
Infections of Two Isthmiophora Species (Digenea: Echinostomatidae) in Wild Mammals from Republic of Korea with Their Morphological Descriptions
Seongjun Choe, Ki-Jeong Na, Youngjun Kim, Dong-Hyuk Jeong, Jeong-Jin Yang, Keeseon S. Eom
The Korean Journal of Parasitology.2019; 57(6): 647. CrossRef
Echinochasmus swabiensis n. sp. (Digenea: Echinostomatidae) from Black Kite (Milvus Migrans Migrans) in Swabi District, Pakistan
S. Suleman, M. S. Khan, X. Q. Zhu, A. M. Dharejo, E. C. Uwalaka, M. Shah, O. A. Adediran
Folia Veterinaria.2018; 62(2): 5. CrossRef
New Definitive Hosts and Differential Body Indices of Isthmiophora hortensis (Digenea: Echinostomatidae)
Woon-Mok Sohn, Byoung-Kuk Na, Sung-Shik Shin
The Korean Journal of Parasitology.2017; 55(3): 287. CrossRef
Echinostoma macrorchis (Digenea: Echinostomatidae): Metacercariae in Cipangopaludina chinensis malleata Snails and Adults from Experimental Rats in Korea
Woon-Mok Sohn, Byoung-Kuk Na
The Korean Journal of Parasitology.2017; 55(5): 541. CrossRef
Two Echinostome Species, Pegosomum bubulcum and Nephrostomum ramosum (Digenea: Echinostomatidae), from an Eastern Cattle Egret, Bubulcus ibis coromandus, in Republic of Korea
Seongjun Choe, Dongmin Lee, Hansol Park, Hyeong-Kyu Jeon, Youngsun Lee, Eunju Kim, Ki-Jeong Na, Keeseon S. Eom
The Korean Journal of Parasitology.2016; 54(4): 485. CrossRef

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Brief Communication

STAT6 Expression and IL-13 Production in Association with Goblet Cell Hyperplasia and Worm Expulsion of Gymnophalloides seoi from C57BL/6 Mice: Jin-Joo Lee, Donghee Kim, Kyoung-Ho Pyo, Min-Ki Kim, Hyo-Jin Kim, Jong-Yil Chai, Eun-Hee Shin; Korean J Parasitol 2013;51(5):589-594.
Published online October 31, 2013; DOI: https://doi.org/10.3347/kjp.2013.51.5.589

Abstract
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In intestinal helminth infections, Th2 immune respones are generally associated with mucin secretion for worm expulsion from the host intestine. In particular, IL-4 and IL-13 are the important cytokines related with intestinal mucus production via STAT6 signalling in nematode infections. However, this perspective has never been studied in Gymnophalloides seoi infection. The present study aimed to observe the STAT6 signalling and cytokine responses in C57BL/6 mice, a mouse strain resistant to infection with this trematode. The results showed that worm expulsion occurred actively during days 1-2 post-infection (PI), when goblet cells began to proliferate in the small intestine. The STAT6 gene expression in the mouse spleen became remarkable from day 2 PI. Moreover, G. seoi infection induced a significant increase of IL-13 from day 4 PI in the spleen of infected mice. Our results suggested that goblet cell hyperplasia and worm expulsion in G. seoi-infected mice should be induced by STAT6 signalling, in which IL-13 may be involved as a dominant triggering cytokine.

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Franziska Bayer, Olga Dremova, My Phung Khuu, Könül Mammadova, Giulia Pontarollo, Klytaimnistra Kiouptsi, Natalia Soshnikova, Helen Louise May-Simera, Kristina Endres, Christoph Reinhardt
Nutrients.2021; 13(7): 2198. CrossRef
Role of Goblet Cells in Intestinal Barrier and Mucosal Immunity
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Journal of Inflammation Research.2021; Volume 14: 3171. CrossRef
The relationship between intestinal goblet cells and the immune response
Mingming Zhang, Chenchen Wu
Bioscience Reports.2020;[Epub] CrossRef
Developmental expression of STATs, nuclear factor-κB and inflammatory genes in the jejunum of piglets during weaning
Hongbo Yi, Denghu Jiang, Lin Zhang, Haitao Xiong, Feifei Han, Yizhen Wang
International Immunopharmacology.2016; 36: 199. CrossRef
Increased Intestinal Epithelial Cell Turnover and Intestinal Motility in Gymnophalloides seoi-Infected C57BL/6 Mice
Sang Hyub Lee, Bong-Kwang Jung, Jae-Hwan Park, Eun-Hee Shin, Jong-Yil Chai
The Korean Journal of Parasitology.2014; 52(3): 273. CrossRef

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88 Download
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Original Articles

Trematodes Recovered in the Small Intestine of Stray Cats in the Republic of Korea: Jong-Yil Chai, Young Yil Bahk, Woon-Mok Sohn; Korean J Parasitol 2013;51(1):99-106.
Published online February 18, 2013; DOI: https://doi.org/10.3347/kjp.2013.51.1.99

Abstract
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In 2005, we reported the infection status of 438 stray cats with various species of intestinal helminths, including nematodes (4 species), trematodes (23 species), and cestodes (5 species) in the Republic of Korea. However, morphologic details of each helminth species have not been provided. In the present study, we intended to describe morphologic details of 13 trematode species which were either new fauna of cats (10 species) or new fauna of not only cats but also all animal hosts (3 species). The worms were fixed in 10% neutral buffered formalin under a cover slip pressure, stained with Semichon's acetocarmine, and then observed using a light microscope equipped with a micrometer. The 13 subjected species included members of the Heterophyidae (Stellantchasmus falcatus, Stictodora fuscata, Stictodora lari, Centrocestus armatus, Procerovum varium, and Cryptocotyle concava), Echinostomatidae (Echinostoma hortense, Echinostoma revolutum, Echinochasmus japonicus, and Stephanoprora sp.), Diplostomidae (Neodiplostomum seoulense), Plagiorchiidae (Plagiorchis muris), and Dicrocoeliidae (Eurytrema pancreaticum). By the present study, Cryptocotyle sp. and Neodiplostomum sp. recored in our previous study were identified as C. concava and N. seoulense, respectively. Three species, P. varium, C. concava, and Stephanoprora sp., are new trematode fauna in Korea.

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Parasites, Hosts and Diseases.2025; 63(4): 349. CrossRef
Metabarcoding of pathogenic parasites based on copro-DNA analysis of wild animals in South Korea
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Hyeon Cheol Kim, Eui Ju Hong, Si Yun Ryu, Jinho Park, Jeong Gon Cho, Do Hyeon Yu, Joon Seok Chae, Kyoung Seong Choi, Bae Keun Park
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Heon Woo Lee, Eui Ju Hong, Hyeon Cheol Kim, Si Yun Ryu, Bae Keun Park
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Foodborne intestinal flukes: A brief review of epidemiology and geographical distribution
Jong-Yil Chai, Bong-Kwang Jung
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Petr Heneberg, Jiljí Sitko, Miroslav Těšínský
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Necrotizing Enteritis Caused by Pharyngostomum cordatum Infection in a Stray Cat
Ji-Hyeon Kim, Kyunghyun Lee, Woon-Mok Sohn, Ha-Young Kim, Yu-Ran Lee, Eun-Jin Choi, ByungJae So, Ji-Youl Jung
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Infections with Centrocestus armatus Metacercariae in Fishes from Water Systems of Major Rivers in Republic of Korea
Woon-Mok Sohn, Byoung-Kuk Na, Shin-Hyeong Cho, Jung-Won Ju, Cheon-Hyeon Kim, Ki-Bok Yoon, Jai-Dong Kim, Dong Cheol Son, Soon-Won Lee
The Korean Journal of Parasitology.2018; 56(4): 341. CrossRef
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Epidemiological Survey on the Infection of Intestinal Flukes in Residents of Muan-gun, Jeollanam-do, the Republic of Korea: Shin-Hyeong Cho, Pyo-Yun Cho, Dong-Min Lee, Tong-Soo Kim, In-Sang Kim, Eun-Jung Hwang, Byoung-Kuk Na, Woon-Mok Sohn; Korean J Parasitol 2010;48(2):133-138.
Published online June 17, 2010; DOI: https://doi.org/10.3347/kjp.2010.48.2.133

Abstract
PDF

Infection status of intestinal flukes was investigated in residents of Muan-gun, Jeollanam-do, the Republic of Korea. Total 1,257 fecal samples of residents were examined by formalin-ether sedimentation technique and Kato-Katz thick smear method. Helminth eggs were detected from 95 (7.6%) residents, and eggs of heterophyid flukes and Clonorchis sinensis were found from 62 (4.9%) and 40 (3.2%) cases, respectively. The larger heterophyid eggs, somewhat dark-brown in color and 37.7 × 21.5 ?m in average size, and found in 32 (2.6%) out of 62 egg positive cases of heterophyid flukes. To confirm the adult flukes, we performed worm recovery from 12 cases after praziquantel treatment and purgation with MgSO₄. A total of 1,281 adult flukes, assigned to 7 species, were recovered from 9 cooperative cases. Heterophyes nocens (total 981 specimens) was collected from 9 cases, Stictodora fuscata (80) from 7, Gymnophalloides seoi (75) from 5, Pygidiopsis summa (140) from 3, Stellantchasmus falcatus (3) from 2, and Stictodora lari and Acanthotrema felis (each 1 worm) from 1 case each. The intrauterine eggs of S. fuscata collected from the recovered worm were identical with the larger heterophyid eggs detected in the stool examination. By the present study, it was confirmed that A. felis is a new intestinal fluke infecting humans, and residents in Muan-gun, Jeollanam-do are infected with variable species of intestinal trematodes.

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Infections with Zoonotic Trematode Metacercariae in Yellowfin Goby, Acanthogobius flavimanus, from Coastal Areas of Republic of Korea
Woon-Mok Sohn, Byoung-Kuk Na, Shin-Hyeong Cho, Jung-Won Ju, Soon-Won Lee, Won-Seok Seok
The Korean Journal of Parasitology.2018; 56(3): 259. CrossRef
Fishborne zoonotic heterophyid infections: An update
Jong-Yil Chai, Bong-Kwang Jung
Food and Waterborne Parasitology.2017; 8-9: 33. CrossRef
The importance of wild fish in the epidemiology of Clonorchis sinensis in Vietnam
Thanh Ngoc Bui, Thanh Thi Pham, Nguyen Thi Nguyen, Ha Van Nguyen, Darwin Murrell, Van Thi Phan
Parasitology Research.2016; 115(9): 3401. CrossRef
Pygidiopsis summa (Digenea: Heterophyidae): Status of Metacercarial Infection in Mullets from Coastal Areas in the Republic of Korea
Woon-Mok Sohn, Byoung-Kuk Na, Shin-Hyeong Cho, Won-Ja Lee, Mi-Yeoun Park, Soon-Won Lee, Seung-Bong Choi, Beom-Nyung Huh, Won-Seok Seok
The Korean Journal of Parasitology.2016; 54(4): 497. CrossRef
Stellantchasmus falcatus (Digenea: Heterophyidae) in Cambodia: Discovery of Metacercariae in Mullets and Recovery of Adult Flukes in an Experimental Hamster
Jong-Yil Chai, Woon-Mok Sohn, Byoung-Kuk Na, Hoo-Gn Jeoung, Muth Sinuon, Duong Socheat
The Korean Journal of Parasitology.2016; 54(4): 537. CrossRef
Comparative Risk of Liver and Intestinal Fluke Infection from Either Wild-Caught or Cultured Fish in Vietnam
Thi Van Phan, Ngoc Thanh Bui, Van Ha Nguyen, Darwin Murrell
Vector-Borne and Zoonotic Diseases.2016; 16(12): 790. CrossRef
Four Human Cases of Acanthotrema felis (Digenea: Heterophyidae) Infection in Korea
Jong-Yil Chai, Jae-Lip Kim, Min Seo
The Korean Journal of Parasitology.2014; 52(3): 291. CrossRef
Comparative Morphology of Minute Intestinal Fluke Eggs That Can Occur in Human Stools in the Republic of Korea
Jin-Joo Lee, Bong-Kwang Jung, Hyemi Lim, Mi Youn Lee, Sung-Yil Choi, Eun-Hee Shin, Jong-Yil Chai
The Korean Journal of Parasitology.2012; 50(3): 207. CrossRef
Infection Status of Estuarine Fish and Oysters with Intestinal Fluke Metacercariae in Muan-gun, Jeollanam-do, Korea
Shin-Hyeong Cho, In-Sang Kim, Eun-Jung Hwang, Tong-Soo Kim, Byoung-Kuk Na, Woon-Mok Sohn
The Korean Journal of Parasitology.2012; 50(3): 215. CrossRef
Discovery ofMaritrema obstipum(Digenea: Microphallidae) from Migratory Birds in Korea
Ok-Sik Chung, Woon-Mok Sohn, Jong-Yil Chai, Min Seo, Hye-Jung Lee
The Korean Journal of Parasitology.2011; 49(4): 457. CrossRef
Prevalence ofMetagonimusMetacercariae in Sweetfish,Plecoglossus altivelis, from Eastern and Southern Coastal Areas in Korea
Shin-Hyeong Cho, Tong-Soo Kim, Byoung-Kuk Na, Woon-Mok Sohn
The Korean Journal of Parasitology.2011; 49(2): 161. CrossRef