title: Regarding adjuvant radiation therapy in merkel cell carcinoma: selection bias and its affect on overall survival.
authors: Douglas M
authors: DM
authors: Housman
authors: Roy H
authors: RH
authors: Decker
authors: Lynn D
authors: LD
authors: Wilson
mesh_terms: D015266:Carcinoma, Merkel Cell / Q000401:mortality* / Q000532:radiotherapy*; D006801:Humans; D012189:Retrospective Studies; D015983:Selection Bias; D012878:Skin Neoplasms / Q000401:mortality* / Q000532:radiotherapy*; D015996:Survival Rate