title: Eggshell thickness in mallards fed methylmercury.
mesh_terms: D000818:Animals; D003633:Dichlorodiphenyl Dichloroethylene / Q000633:toxicity; D004032:Diet; D004357:Drug Synergism; D004372:Ducks / Q000502:physiology*; D004528:Egg Shell; D005260:Female; D008767:Methylmercury Compounds / Q000633:toxicity*
chemical_list: D008767:Methylmercury Compounds; D003633:Dichlorodiphenyl Dichloroethylene