TY - RPRT TI - FETAL DEVELOPMENT AS DETERMINED BY ULTRASONIC PULSE ECHO TECHNIQUES. AU - H E THOMPSON AU - J H HOLMES AU - K R GOTTESFELD AU - E S TAYLOR PY - 1965 DO - 10.1016/0002-9378(65)90103-1 UR - https://pubmed.ncbi.nlm.nih.gov/14280909/ ID - 14280909 ER -