University of Auckland, affiliation not provided to SSRN, University of Nottingham, affiliation not provided to SSRN, affiliation not provided to SSRN, The University of Sydney - Westmead Hospital, University of Ottawa, Government of the United States of America - Birmingham VA Medical Center, Bispebjerg and Frederiksberg Hospitals - Section for Biostatistics and Evidence-Based Research, affiliation not provided to SSRN, Polytechnic University of Marche, University of Cyprus, Hospital de la Santa Creu i Sant Pau, University College Dublin, University of Lausanne - Lausanne University Hospital, Cairo University, affiliation not provided to SSRN, affiliation not provided to SSRN, affiliation not provided to SSRN, University of Otago, Alexandria University, affiliation not provided to SSRN, University of Milan, Royal Adelaide Hospital, affiliation not provided to SSRN and University of Auckland