Intestinal parasites.
D002589:Cestoda / Q000302:isolation & purification; D004748:Entamoeba histolytica / Q000302:isolation & purification; D005243:Feces; D006801:Humans; D007411:Intestinal Diseases, Parasitic / Q000175:diagnosis* / Q000188:drug therapy; D009348:Nematoda / Q000302:isolation & purification; D014200:Trematoda / Q000302:isolation & purification