1. Department of Epidemiology, Biostatistics and Occupational Health McGill University Montréal Québec Canada
2. Center for Clinical Epidemiology Lady Davis InstituteJewish General Hospital Montréal Québec Canada
3. Division of Endocrinology Jewish General Hospital Montréal Québec Canada
4. Department of Medicine McGill University Montréal Québec Canada
5. Institute of Clinical Pharmacology and Toxicology Charité – Universitätsmedizin Berlin Berlin Germany