{"nct_id":"NCT00881959","title":"Study of Root Coverage With Acellular Dermal Matrix: Puros® Dermis Versus Alloderm®","status":"COMPLETED","status_verified_date":"2015-05","start_date":"2009-08","start_date_type":null,"primary_completion_date":"2012-04","primary_completion_date_type":"ACTUAL","completion_date":"2012-06","completion_date_type":"ACTUAL","phases":["NA"],"tickers":["ZBH"]}