title: Preoperative duplex imaging is required before all operations for primary varicose veins.
authors.forename: H S
authors.initials: HS
authors.lastname: Khaira
authors.forename: A
authors.initials: A
authors.lastname: Jewkes
authors.forename: B
authors.initials: B
authors.lastname: Jones
mesh_terms: D006801:Humans; D016134:Organizational Policy; D011300:Preoperative Care / Q000295:instrumentation; D018616:Ultrasonography, Doppler, Duplex / Q000295:instrumentation*; D014648:Varicose Veins / Q000000981:diagnostic imaging*; D014850:Waiting Lists