1. Research Centre for Ageing and OsteoporosisDepartment of MedicineGlostrup HospitalGlostrupDenmark
2. Odense Patient Data Explorative NetworkInstitute of Clinical ResearchUniversity of Southern DenmarkOdenseDenmark
3. MRC Lifecourse Epidemiology UnitUniversity of SouthamptonSouthampton General HospitalSouthamptonUK