1. Stanford University; Meta-Research Innovation Center at Stanford (METRICS); Stanford CA USA
2. University Medical Center Utrecht; Cochrane Netherlands; Utrecht Netherlands
3. University Medical Center Utrecht; Julius Center for Health Sciences and Primary Care; Utrecht Netherlands
4. School of Public Health, Brown University; Department of Health Services, Policy & Practice; 121 S. Main Street Providence RI USA 02903
5. University of Bristol; School of Experimental Psychology and MRC Integrative Epidemiology Unit; 8 Woodland Road Bristol UK BS8 1TN
6. University of Oxford; Clinical Trial Service Unit and Epidemiological Studies Unit, Nuffield Department of Population Health; Richard Doll Building Old Road Campus Oxford UK OX3 7LF
7. Biorealm; Culver City CA USA
8. Stanford University; Division of Primary Care and Population Health, Department of Medicine; Stanford California USA 94304-5559