title: False-negative margins.
authors: M C
authors: MC
authors: Zimmerman
mesh_terms: D000368:Aged; D002280:Basal Cell Carcinoma / Q000473:pathology / Q000601:surgery*; D002294:Carcinoma, Squamous Cell / Q000473:pathology / Q000601:surgery*; D005260:Female; D006801:Humans; D008318:Malpractice; D009364:Neoplasm Recurrence, Local; D012878:Skin Neoplasms / Q000473:pathology / Q000601:surgery*