| Affiliation: | 1. Department of Pathology, Faculty of Veterinary Science, Chulalongkorn University, Henri Dunant Road, Patumwan, Bangkok 10330, Thailand;2. Department of Helminthology, Faculty of Tropical Medicine, Mahidol University, Ratchawithi Road, Bangkok 10400, Thailand;3. Centre for Animal Parasitology, Canadian Food Inspection Agency, Saskatoon Laboratory, Saskatoon, Sask., Canada S7N 2R3;1. Department of Epidemiology, UCLA School of Public Health, Center for Health Sciences, Room 41-297, 650 Charles E. Young Drive, Los Angeles, CA 90024, USA;2. Data Collection and Analysis Unit, Los Angeles County Department of Health Services, 313 N. Figueroa Avenue # 127, Los Angeles, CA 90012, USA;1. Department of Surgery, Division of Urology, Scott and White Hospital, Texas A&M Health Science Center, Temple, Texas |
