[1
]
Karolinska University Hospital and Karolinska Institutet, Stockholm, Sweden.
[2
]
Karolinska Institutet, Stockholm, Sweden.
[3
]
Philadelphia VA Medical Center and Hospital of the University of Pennsylvania, Philadelphia.
[4
]
Great Ormond Street Hospital for Children NHS Trust, London, UK.
[5
]
Academic Medical Centre, Amsterdam, The Netherlands.
[6
]
Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts.
[7
]
University of Kansas Medical Center, Kansas City.
[8
]
Brigham and Women's Hospital and Boston VA Healthcare, Boston, Massachusetts.
[9
]
Mayo Clinic College of Medicine, Rochester, Minnesota, and University of Alabama and
Birmingham VA Medical Center, Birmingham, Alabama.
[10
]
University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania.
[11
]
Central Manchester University Hospitals NHS Foundation Trust, University of Manchester,
Manchester, UK.
[12
]
University of Liverpool, Liverpool, UK.
[13
]
University of Debrecen, Debrecen, Hungary.
[14
]
University of Toronto and The Hospital for Sick Children, Toronto, Ontario, Canada.
[15
]
Hospital General de Occidente, Secretaría de Salud and University of Guadalajara,
Guadalajara, Mexico.
[16
]
King's College Hospital NHS Foundation Trust, London, UK.
[17
]
University of Tsukuba, Tsukuba, Japan.
[18
]
National Institute of Arthritis and Musculoskeletal and Skin Diseases, NIH, Bethesda,
Maryland.
[19
]
Tokyo Medical and Dental University, Tokyo, Japan.
[20
]
Oregon State University, Corvallis.
[21
]
IWK Health Centre and Dalhousie University, Halifax, Nova Scotia, Canada.
[22
]
People's Hospital of Beijing University, Beijing, China.
[23
]
National Institute of Geriatrics, Rheumatology and Rehabilitation, Warsaw, Poland.
[24
]
Duke University, Durham, North Carolina.
[25
]
Institute of Rheumatology, Warsaw, Poland.
[26
]
Oslo University Hospital-Rikshospitalet, Oslo, Norway.
[27
]
Vall d'Hebron General Hospital, Barcelona, Spain.
[28
]
Seoul National University College of Medicine, Seoul, Republic of Korea.
[29
]
Charles University, Prague, Czech Republic.
[30
]
Mayo Clinic College of Medicine, Rochester, Minnesota.
[31
]
National Institute of Environmental Health Sciences, NIH, Bethesda, Maryland.