Evaluation of Standard and Proposed Reference Values for Entheseal Thickening by Using Musculoskeletal Ultrasound

¹M. Keenan, MD, D. Solmaz, MD, S. Bakirci, MD, Division of Rheumatology, Faculty of Medicine, University of Ottawa;
²J. Roth, MD, Division of Pediatric Dermatology & Rheumatology, University of Ottawa, and Children’s Hospital of Eastern Ontario, Ottawa;
³L. Eder, MD, PhD, Women’s College Research Institute, Women’s College Hospital, and the Department of Medicine, University of Toronto, Toronto;
⁴S.Z. Aydin, MD, Division of Rheumatology, Faculty of Medicine, University of Ottawa, and The Ottawa Hospital Research Institute, Ottawa, Ontario, Canada.

Address correspondence to Dr. S.Z. Aydin, Department of Rheumatology, The Ottawa Hospital Riverside Campus, 1967 Riverside Drive, Ottawa, ON K1H 7W9, Canada. Email: saydin{at}toh.ca.