Ulceration by oral ferrous sulfate.
D000284:Administration, Oral; D000368:Aged; D005260:Female; D005296:Ferrous Compounds / Q000008:administration & dosage / Q000009:adverse effects*; D006801:Humans; D007501:Iron / Q000009:adverse effects*; D007818:Laryngeal Diseases / Q000139:chemically induced; D010608:Pharyngeal Diseases / Q000139:chemically induced; D013431:Sulfates / Q000008:administration & dosage / Q000009:adverse effects; D014456:Ulcer / Q000139:chemically induced*
D005296:Ferrous Compounds; D013431:Sulfates; D007501:Iron