TY - GEN AU - Russell,D M AU - Nelson,R T TI - Facial soft tissue profile change in the North American Black with four first premolar extractions SN - 0025-4355 PY - 1987///0116 KW - Bicuspid KW - surgery KW - Black People KW - Cephalometry KW - Face KW - anatomy & histology KW - Female KW - Humans KW - Male KW - North America KW - Tooth Extraction N1 - Publication Type: Journal Article ER -