Single dose use of metrifonate.
D000293:Adolescent; D000328:Adult; D002648:Child; D002675:Child, Preschool; D004334:Drug Administration Schedule; D005500:Follow-Up Studies; D005714:Gambia; D006801:Humans; D010270:Parasite Egg Count; D012548:Schistosoma haematobium; D012552:Schistosomiasis / Q000188:drug therapy* / Q000469:parasitology; D014236:Trichlorfon / Q000008:administration & dosage*
D014236:Trichlorfon