Human fecal markers.
D000818:Animals; D002417:Cattle; D002857:Chromium; D002860:Chromium Radioisotopes; D005243:Feces; D006801:Humans; D011092:Polyethylene Glycols
D002860:Chromium Radioisotopes; D002857:Chromium; D011092:Polyethylene Glycols