title: A simple, quantitative test for erythrocytic protoporphyrin in lead-poisoned ducks.
mesh_terms: D000818:Animals; D001715:Bird Diseases / Q000097:blood*; D004372:Ducks; D004906:Erythrocyte Count; D004912:Erythrocytes / Q000378:metabolism*; D007854:Lead / Q000097:blood; D007855:Lead Poisoning / Q000097:blood / Q000662:veterinary*; D011166:Porphyrins / Q000097:blood*; D011524:Protoporphyrins / Q000097:blood*; D013050:Spectrometry, Fluorescence
chemical_list: D011166:Porphyrins; D011524:Protoporphyrins; D007854:Lead