Introduction. Ankylosing spondylitis

Affiliations

• ¹ 1College of Medicine, Pacific Northwest University of Health Sciences, Yakima, Washington.
• ² 2Cedars-Sinai Medical Center, Spine Institute, Los Angeles, California.
• ³ 3Cedars-Sinai Medical Center, Department of Neurosurgery, Los Angeles, California.
• ⁴ 4Department of Neurological Surgery, University of Miami Miller School of Medicine, Miami, Florida.
• ⁵ 5Swedish Neuroscience Institute, Seattle, Washington; and.
• ⁶ 6Department of Neurosurgery, School of Medicine, Klinikum Rechts der Isar, Technical University of Munich, Germany.