Product Search Search Effective Health Care website Submit search Search Tip: Use double quotes around phrases to rank exact matches higher in the result list. 6 results Tonsillectomy for Recurrent Infection and Obstructive Sleep Disordered Breathing Research Protocol Archived December 3, 2015 Psychosocial and Pharmacologic Interventions for Disruptive Behavior Disorder Research Protocol Archived July 1, 2014 Feeding and Nutrition Interventions in Cerebral Palsy Research Protocol Archived June 12, 2012 Nitrous Oxide for the Management of Labor Pain Research Protocol Archived May 11, 2011 Comparative Effectiveness of Treatment for Phenylketonuria Research Protocol Archived February 8, 2011 Comparative Effectiveness of Treatments for Noncyclic Chronic Pelvic Pain in Women Research Protocol Archived October 19, 2010