title: Nail damage in spray operators exposed to paraquat.
mesh_terms: D000382:Agricultural Workers' Diseases / Q000139:chemically induced*; D006540:Herbicides / Q000009:adverse effects*; D009264:Nails, Malformed / Q000139:chemically induced* / Q000453:epidemiology / Q000473:pathology; D010269:Paraquat / Q000009:adverse effects; D011726:Pyridinium Compounds / Q000009:adverse effects*; D014300:Trinidad and Tobago
chemical_list: D006540:Herbicides; D011726:Pyridinium Compounds; D010269:Paraquat