Venography.
D003287:Contrast Media; D006801:Humans; D007275:Injections, Intravenous; D007866:Leg / Q000098:blood supply*; D008722:Methods; D010690:Phlebography; D011183:Postoperative Complications / Q000000981:diagnostic imaging; D013924:Thrombophlebitis / Q000000981:diagnostic imaging*; D014648:Varicose Veins / Q000000981:diagnostic imaging
D003287:Contrast Media