title: A prospective comparison of four methods for the diagnosis of deep vein thrombosis.
mesh_terms: D000208:Acute Disease; D000293:Adolescent; D000328:Adult; D000368:Aged; D005260:Female; D005340:Fibrinogen; D006801:Humans; D007457:Iodine Radioisotopes; D007866:Leg / Q000098:blood supply; D008297:Male; D008875:Middle Aged; D010690:Phlebography / Q000379:methods; D010992:Plethysmography, Impedance; D011446:Prospective Studies; D012008:Recurrence; D013924:Thrombophlebitis / Q000175:diagnosis* / Q000000981:diagnostic imaging; D014463:Ultrasonography
chemical_list: D007457:Iodine Radioisotopes; D005340:Fibrinogen