1. Department of Clinical Epidemiology and Biostatistics; McMaster University; Hamilton ON Canada
2. Department of Medicine; McMaster University; Hamilton ON Canada
3. Clinical Pharmacy Services; Kaiser Permanente Colorado; Aurora Colorado
4. Department of Medicine; Innlandet Hospital Trust; Gjøvik Norway
5. Norway and Norwegian Knowledge Centre for the Health Services; Oslo Norway
6. Division of Clinical Pharmacology and Therapeutics; McMaster University; Hamilton ON Canada