Snakes in the grass or, the worm turns on.
D000328:Adult; D000656:Amoeba / Q000302:isolation & purification; D004029:Dientamoeba / Q000302:isolation & purification; D004757:Enterobius / Q000302:isolation & purification; D056890:Eukaryota / Q000302:isolation & purification; D005872:Giardia / Q000302:isolation & purification; D005873:Giardiasis / Q000175:diagnosis; D006801:Humans; D008297:Male; D011528:Protozoan Infections / Q000175:diagnosis*