title: Margin call.
authors.affiliation: Depts. of Pathology and Dermatology, University of California, San Francisco, USA.
authors.forename: Philip E
authors.initials: PE
authors.lastname: LeBoit
mesh_terms: D000368:Aged; D006801:Humans; D018327:Hutchinson's Melanotic Freckle / Q000473:pathology / Q000601:surgery*; D009361:Neoplasm Invasiveness; D009364:Neoplasm Recurrence, Local / Q000517:prevention & control*; D012878:Skin Neoplasms / Q000473:pathology / Q000601:surgery*