Leviton, Laura C. <br/><br/>
Cluster randomized trials for the evaluation of strategies designed to promote evidence-based practice in perinatal and neonatal medicine 

 -  2005 
 - p.94-114. 
 - May 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Medical sciences<br/>Women<br/>Child welfare<br/>Health services