Carlos Julio Aponte, MD, board-certified rheumatologist and American Faculty of Rheumatology member.

David Borenstein, MD, medical professor of medication, George Washington College Medical Middle; companion, Arthritis and Rheumatism Associates, Washington, DC; government editor,

UpToDate: “Prognosis and differential analysis of axial spondyloarthritis (ankylosing spondylitis and nonradiographic axial spondyloarthritis) in adults,” “Pathogenesis of spondyloarthritis.”

Nationwide Well being Service (U.Ok.): “Ankylosing spondylitis.”

Spondylitis Affiliation of America: “Prognosis of Ankylosing Spondylitis.”

Johns Hopkins Arthritis Middle: “Ankylosing Spondylitis.”

Present Rheumatology Reviews: “Gender Variations in Axial Spondyloarthritis: Ladies Are Not So Fortunate.”

Stanford Healthcare: “How is Ankylosing Spondylitis identified?”