TY - GEN AU - Koch,R AU - Hanley,W AU - Levy,H AU - Matalon,R AU - Rouse,B AU - Dela Cruz,F AU - Azen,C AU - Gross Friedman,E TI - A preliminary report of the collaborative study of maternal phenylketonuria in the United States and Canada SN - 0141-8955 PY - 1990///1207 KW - Canada KW - epidemiology KW - Diet, Reducing KW - Female KW - Humans KW - Phenylketonurias KW - diet therapy KW - Pregnancy KW - Pregnancy Complications KW - Prospective Studies KW - United States N1 - Publication Type: Clinical Trial; Journal Article; Multicenter Study; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, P.H.S UR - https://doi.org/10.1007/BF01799519 ER -