"Waterborne diseases" . "RTTEM" . "Feces" . "RTT" . "Sanitation" . "Symptoms and signs: Digestive system and abdomen" . "Diarrhea" . "Omics" . "Diseases of intestines" . "Intestinal infectious diseases" . "Conditions diagnosed by stool test" . "Serology" . "Systems biology" . "Blood" . "Metabolism" .