Swiontkowski, M.F.

trial patient period study number coordinator netherland country trial coordinator screening university hospital trial period inclusion research ethic center screening period canada approval nl vs faith investigator month follow-up multicenter percentage faith trial ethics approval canadian zielinski ethics /irb approval fracture randomized management table dutch difference enrolment revision process faith trial nl bhandari committee manuscript health hip fractures significance grant approach research assistants michael bhandari m canadian sites rotterdam inclusion rate coordination variable strategy david review tornetta p jr proportion mann-whitney u-test erasmus mc multicenter randomized procedure research team j bone center rotterdam consent form version state dutch sites trial performance submission surgeon group protocol screening data