title: Defining purpura.
authors: W
authors: W
authors: Verkruysse
authors: M A
authors: MA
authors: Trelles
authors: J W
authors: JW
authors: Pickering
mesh_terms: D006391:Hemangioma / Q000601:surgery; D006801:Humans; D017075:Laser Coagulation; D011693:Purpura / Q000473:pathology; D012867:Skin / Q000473:pathology; D012871:Skin Diseases / Q000473:pathology; D012878:Skin Neoplasms / Q000601:surgery; D009626:Terminology as Topic