title: Preoperative duplex imaging is required before all operations for primary varicose veins.
authors.forename: F J
authors.initials: FJ
authors.lastname: Meyer
authors.forename: P R
authors.initials: PR
authors.lastname: Taylor
authors.forename: K G
authors.initials: KG
authors.lastname: Burnand
mesh_terms: D006801:Humans; D016134:Organizational Policy; D011300:Preoperative Care / Q000295:instrumentation; D012501:Saphenous Vein; D018616:Ultrasonography, Doppler, Duplex / Q000295:instrumentation*; D014648:Varicose Veins / Q000000981:diagnostic imaging*