Parasitism of the small bowel.
D001196:Ascariasis; D002590:Cestode Infections; D006725:Hookworm Infections; D006801:Humans; D007421:Intestine, Small; D007422:Intestines; D013322:Strongyloidiasis; D014235:Trichinellosis
ASCARIASIS; HOOKWORM INFECTION; INTESTINE, SMALL; STRONGYLOIDIASIS; TAPEWORM INFECTION; TRICHINOSIS