affiliation not provided to SSRN, Computable Publishing LLC, Universidad Cientifica del Sur, affiliation not provided to SSRN, Humanitas University, Sant Pau Research Institute, Government of India - National Institute of Occupational Health, affiliation not provided to SSRN, University of Oregon, Western Sydney University - NICM Health Research Institute, McMaster University, University of New South Wales (UNSW) - Institute of Environmental Studies, Johns Hopkins University - School of Medicine, Sichuan University - Department of Endocrinology and Metabolism, University of Freiburg - Institute for Evidence in Medicine, affiliation not provided to SSRN, affiliation not provided to SSRN, Pontificia Universidad Católica de Chile - Department of Internal Medicine, Dalhousie University, McMaster University, McMaster University, Government of the United States of America - Birmingham VA Medical Center, Universidade do Porto - Department of Community Medicine, Health Information and Decision, Cochrane Consumer, Christian Medical College, McMaster University - Department of Anesthesia, affiliation not provided to SSRN, McMaster University and Humanitas University