title: Letter: The use of the ultrasonic Doppler test in the detection of deep vein thrombosis.
mesh_terms: D005340:Fibrinogen; D006801:Humans; D007457:Iodine Radioisotopes; D013924:Thrombophlebitis / Q000175:diagnosis*; D014463:Ultrasonography
chemical_list: D007457:Iodine Radioisotopes; D005340:Fibrinogen