title: Percutaneous detection of free flap vascular pedicles using a Doppler ultrasonic velocimeter.
mesh_terms: D000328:Adult; D000368:Aged; D001808:Blood Vessels / Q000033:anatomy & histology; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D012212:Rheology; D013524:Surgical Flaps