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J. H. Kellgren
Ann Rheum Dis 1964; 23: 109-122. doi:10.1136/ard.23.2.109
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T. M. Chalmers, W. R. M. Alexander, and J. J. R. Duthie
Ann Rheum Dis 1964; 23: 123-130. doi:10.1136/ard.23.2.123
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K. Ennevaara and Martti Oka
Ann Rheum Dis 1964; 23: 131-138. doi:10.1136/ard.23.2.131
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A. M. Denman, L. Szur, and B. M. Ansell
Ann Rheum Dis 1964; 23: 139-144. doi:10.1136/ard.23.2.139
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Rudolf H. Moos and George F. Solomon
Ann Rheum Dis 1964; 23: 145-151. doi:10.1136/ard.23.2.145
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Chester T. Stafford, William Niedermeier, Howard L. Holley, and Ward Pigman
Ann Rheum Dis 1964; 23: 152-157. doi:10.1136/ard.23.2.152
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J. R. de Andrade, J. N. McCormick, and A. G. S. Hill
Ann Rheum Dis 1964; 23: 158-162. doi:10.1136/ard.23.2.158
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M. H. Young and W. A. J. Crane
Ann Rheum Dis 1964; 23: 163-168. doi:10.1136/ard.23.2.163
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Ann Rheum Dis 1964; 23: 172-192. doi:10.1136/ard.23.2.172
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