[1
]
Department of Rheumatology, Musculoskeletal Statistics Unit, The Parker Institute,
Frederiksberg Hospital, Nordre Fasanvej 57, 2000 Copenhagen, Denmark.
[2
]
Department of Medicine, David Geffen School of Medicine, University of California,
10833 Le Conte Avenue, Los Angeles, CA 90095, USA.
[3
]
Copenhagen Trial Unit, Centre for Clinical Intervention Research, Department 7812,
Rigshospitalet, Copenhagen University Hospital, Blegdamsvej 9, 2100 Copenhagen, Denmark.
[4
]
Clinical Epidemiology Program, Department of Epidemiology and Community Medicine,
Ottawa Hospital Research Institute, University of Ottawa, Room 3105, 451 Smyth Road,
Ottawa, Ontario K1H 8M5, Canada.
[5
]
Department of Clinical Epidemiology & Biostatistics, Faculty of Health Sciences, McMaster
University, 1200 Main Street West, Hamilton, Ontario L8N 3Z5, Canada.
[6
]
Department of Rheumatology, The Parker Institute, Frederiksberg Hospital, Nordre Fasanvej
57, 2000 Copenhagen, Denmark.
[7
]
Department of Rheumatology, Musculoskeletal Statistics Unit, The Parker Institute,
Frederiksberg Hospital, Nordre Fasanvej 57, 2000 Copenhagen, Denmark. Electronic address:
Robin.Christensen@regionh.dk.