Gheorghe, Adrian Centre selection for clinical trials and the generalisability of results: a mixed methods study. [electronic resource] - PloS one 2013 - e56560 p. digital Publication Type: Journal Article; Research Support, Non-U.S. Gov't; Review; Systematic Review ISSN: 1932-6203 Standard No.: 10.1371/journal.pone.0056560 doi Subjects--Topical Terms: Cost-Benefit AnalysisHealth FacilitiesHumansRandomized Controlled Trials as Topic