1. Utrecht Institute for Pharmaceutical Sciences; Utrecht University; Utrecht The Netherlands
2. General Practice Research Database; Medicines and Healthcare Products Regulatory Agency; London UK
3. MRC Lifecourse Epidemiology Unit; University of Southampton; Southampton UK
4. NIHR Musculoskeletal Biomedical Research Unit; University of Oxford; Oxford UK
5. The Osteoporosis Clinic; Aarhus University Hospital; Aarhus Denmark
6. Department of Clinical Pharmacy and Toxicology; Maastricht University Medical Centre; Maastricht Netherlands