title: Why?
mesh_terms: D001918:Brachytherapy; D002280:Basal Cell Carcinoma / Q000532:radiotherapy*; D002294:Carcinoma, Squamous Cell / Q000532:radiotherapy*; D005720:Gamma Rays / Q000627:therapeutic use; D006801:Humans; D012878:Skin Neoplasms / Q000532:radiotherapy*