Koch, R <br/><br/>
A preliminary report of the collaborative study of maternal phenylketonuria in the United States and Canada.  [electronic resource] 

 -  Journal of inherited metabolic disease  1990 
 - 641-50 p.  digital 
<br/><br/> Publication Type: Clinical Trial; Journal Article; Multicenter Study; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, P.H.S. 
<br/><br/><label>ISSN: </label>0141-8955 
<br/><br/><label>Standard No.: </label>10.1007/BF01799519  doi 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Canada--epidemiology<br/>Diet, Reducing<br/>Female<br/>Humans<br/>Phenylketonurias--diet therapy<br/>Pregnancy<br/>Pregnancy Complications--diet therapy<br/>Prospective Studies<br/>United States--epidemiology