About the Authors

Benjamin Speich

Roles Conceptualization, Data curation, Formal analysis, Methodology, Writing – original draft

Affiliation Basel Institute for Clinical Epidemiology and Biostatistics, Department of Clinical Research, University of Basel and University Hospital Basel, Basel, Switzerland

Nadine Schur

Roles Data curation, Formal analysis, Investigation, Writing – original draft, Writing – review & editing

Affiliation Institute of Pharmaceutical Medicine, University of Basel, Basel, Switzerland

Dmitry Gryaznov

Roles Data curation, Formal analysis, Methodology, Writing – original draft, Writing – review & editing

Affiliation Basel Institute for Clinical Epidemiology and Biostatistics, Department of Clinical Research, University of Basel and University Hospital Basel, Basel, Switzerland

Belinda von Niederhäusern

Roles Conceptualization, Data curation, Investigation, Writing – review & editing

Affiliation Clinical Trial Unit, Department of Clinical Research, University of Basel and University Hospital Basel, Basel, Switzerland

Lars G. Hemkens

Roles Data curation, Methodology, Writing – review & editing

Affiliation Basel Institute for Clinical Epidemiology and Biostatistics, Department of Clinical Research, University of Basel and University Hospital Basel, Basel, Switzerland

Stefan Schandelmaier

Roles Data curation, Writing – review & editing

Affiliations Basel Institute for Clinical Epidemiology and Biostatistics, Department of Clinical Research, University of Basel and University Hospital Basel, Basel, Switzerland, Department of Health Research Methods, Evidence, and Impact, McMaster University, Hamilton, ON, Canada

Alain Amstutz

Roles Data curation, Writing – review & editing

Affiliation Swiss Tropical and Public Health Institute, and Division of Infectious Diseases and Hospital Epidemiology, University of Basel and University Hospital Basel, Basel, Switzerland

Benjamin Kasenda

Roles Data curation, Writing – review & editing

Affiliations Basel Institute for Clinical Epidemiology and Biostatistics, Department of Clinical Research, University of Basel and University Hospital Basel, Basel, Switzerland, Department of Medical Oncology, University of Basel and University Hospital Basel, Basel, Switzerland

Christiane Pauli-Magnus

Roles Data curation, Writing – review & editing

Affiliation Clinical Trial Unit, Department of Clinical Research, University of Basel and University Hospital Basel, Basel, Switzerland

Elena Ojeda-Ruiz

Roles Data curation, Writing – review & editing

Affiliation National Centre for Epidemiology, Instituto de Salud Carlos III, Madrid, Spain

Yuki Tomonaga

Roles Data curation, Writing – review & editing

Affiliation Epidemiology, Biostatistics and Prevention Institute, University of Zurich, Zurich, Switzerland

Kimberly McCord

Roles Data curation, Writing – review & editing

Affiliation Basel Institute for Clinical Epidemiology and Biostatistics, Department of Clinical Research, University of Basel and University Hospital Basel, Basel, Switzerland

Alain Nordmann

Roles Data curation, Writing – review & editing

Affiliation Basel Institute for Clinical Epidemiology and Biostatistics, Department of Clinical Research, University of Basel and University Hospital Basel, Basel, Switzerland

Erik von Elm

Roles Data curation, Methodology, Writing – review & editing

Affiliation Cochrane Switzerland, Institute of Social and Preventive Medicine (IUMSP), Lausanne University Hospital, Lausanne, Switzerland

Matthias Briel

Contributed equally to this work with: Matthias Briel, Matthias Schwenkglenks

Roles Conceptualization, Investigation, Methodology, Supervision, Writing – review & editing

matthias.briel@usb.ch

‡ These authors are co-last authors on this work.

Affiliations Basel Institute for Clinical Epidemiology and Biostatistics, Department of Clinical Research, University of Basel and University Hospital Basel, Basel, Switzerland, Department of Health Research Methods, Evidence, and Impact, McMaster University, Hamilton, ON, Canada

Matthias Schwenkglenks

Contributed equally to this work with: Matthias Briel, Matthias Schwenkglenks

Roles Conceptualization, Data curation, Formal analysis, Funding acquisition, Methodology, Project administration, Supervision, Writing – review & editing

‡ These authors are co-last authors on this work.

Affiliations Institute of Pharmaceutical Medicine, University of Basel, Basel, Switzerland, Epidemiology, Biostatistics and Prevention Institute, University of Zurich, Zurich, Switzerland

a collaboration of the MARTA (MAking Randomized Trials Affordable) and ASPIRE (Adherence to Standard Protocol Items: REcommendations for interventional trials) Study Groups

The complete membership lists can be found in the Acknowledgment

Competing Interests

All authors have declared that no competing interests exist. The funder of this study (Swiss Federal Office of Public Health) has implemented the new law on research with human beings (Human Research Act, HRA) and its ordinances (Swiss Legislation on Human Research, LHR) which is evaluated within this study. This does not alter our adherence to PLOS ONE policies on sharing data and materials.