1. A Study of 1035 Cases of Rheumatoid Spondylitis;Polley,1945
2. Rheumatoid Spondylitis;Polley;A Study of 1035 Cases. Ann. Int. Med,1947
3. Marie-Strümpell Arthritis: Follow-up Study of Roentgenographic, Physical and Orthopaedic Therapy;Baker;J. Bone & Joint Surg,1950
4. Rheumatoid Spondylitis;Crenshaw;South. M. J,1952
5. Ankylosing (Marie-Strümpell) Spondylitis. (An Analysis of 100 Cases);Graham;Canad. M. A. J,1947