title: [Methodological and organizational aspects of polycentric research].
mesh_terms: D004358:Drug Therapy; D005069:Evaluation Studies as Topic; D006801:Humans; D007558:Italy; D009934:Organization and Administration; D012106:Research; D013810:Therapeutic Equivalency
vernacular_title: Aspetti metodologici ed organizzativi delle richerche policentriche.