title: Coexisting malignancies in patients with malignant melanoma.
authors.forename: K F
authors.initials: KF
authors.lastname: Helm
authors.forename: S
authors.initials: S
authors.lastname: Bittenbender
authors.forename: R
authors.initials: R
authors.lastname: Localio
mesh_terms: D006801:Humans; D015994:Incidence; D008545:Melanoma / Q000453:epidemiology*; D009378:Neoplasms, Multiple Primary / Q000453:epidemiology*; D010414:Pennsylvania / Q000453:epidemiology; D012189:Retrospective Studies; D012307:Risk Factors; D012878:Skin Neoplasms / Q000453:epidemiology*