[1
]
University of Nebraska Medical Center, Omaha, Nebraska and VA Nebraska-Western Iowa
Health Care System, Omaha, Nebraska.
[2
]
Toronto Western Hospital, Mount Sinai Hospital, and University of Toronto, Toronto,
Ontario, Canada.
[3
]
Berkshire Health Systems, Pittsfield, Massachusetts, and Yale University, New Haven,
Connecticut.
[4
]
University of Texas Southwestern Medical Center, Dallas.
[5
]
Brigham and Women's Hospital, Boston, Massachusetts.
[6
]
University of Alabama at Birmingham.
[7
]
Metroplex Clinical Research Center, Dallas, Texas.
[8
]
University of Nebraska Medical Center, Omaha.
[9
]
Oregon Health and Science University, Portland.
[10
]
American College of Rheumatology, Atlanta, Georgia.