TY - RPRT TI - An objective feature extraction technique applied to the Doppler waveforms from the groin: a prospective study. AU - L Walton AU - T R Martin AU - M Collins AU - S B Sherriff AU - D C Barber PY - 1983 UR - https://pubmed.ncbi.nlm.nih.gov/6242525/ ID - 6242525 ER -