1. Division of Infectious Diseases and Hospital Epidemiology, Departments of Medicine and Clinical Research, University Hospital of Basel and University of Basel, Basel, Switzerland, and Department of Molecular and Clinical Pharmacology, University of Liverpool, Liverpool, United Kingdom (C.M.)
2. Division of Infectious Diseases, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts (D.R.K.)
3. Department of Molecular and Clinical Pharmacology, University of Liverpool, Liverpool, and Department of Pharmacy, NHS Greater Glasgow and Clyde, Glasgow, United Kingdom (F.M., A.B.)
4. Department of Molecular and Clinical Pharmacology, University of Liverpool, Liverpool, United Kingdom (S.G., D.Back, S.K.)
5. Divisions of Clinical Pharmacology and Infectious Diseases, School of Medicine, and Bloomberg School of Public Health, Johns Hopkins University, Baltimore, Maryland (C.F.)
6. Chelsea and Westminster Hospital NHS Foundation Trust and London School of Hygiene and Tropical Medicine, London, United Kingdom (A.P.)
7. Chelsea and Westminster Hospital NHS Foundation Trust, London, United Kingdom (M.B.)
8. Mortimer Market Centre, Central and North West London, NHS Foundation Trust, London, United Kingdom (L.W.)
9. Department of Pharmacy, Radboud University Medical Center, Nijmegen, and Global DDI Solutions, Utrecht, the Netherlands (D.Burger).