title: The precursors of cutaneous squamous cell carcinoma.
mesh_terms: D000230:Adenocarcinoma / Q000473:pathology; D001151:Arsenic / Q000009:adverse effects; D001913:Bowen's Disease / Q000473:pathology; D002294:Carcinoma, Squamous Cell / Q000473:pathology*; D003033:Coal Tar / Q000009:adverse effects; D009783:Dermatitis, Occupational / Q000139:chemically induced; D003875:Drug Eruptions / Q000473:pathology; D006801:Humans; D010787:Photosensitivity Disorders / Q000473:pathology; D011230:Precancerous Conditions / Q000473:pathology*; D012878:Skin Neoplasms / Q000473:pathology*
chemical_list: D003033:Coal Tar; D001151:Arsenic