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3. A comparative study of telephone versus onsite completion of the WOMAC 3.0 Osteoarthritis Index;Bellamy;J Rheumatol,2002
4. Validation study of a computerized version of the Western Ontario and McMaster Universities VA3.0 Osteoarthritis Index;Bellamy;J Rheumatol,1997
5. A comparative study of signal versus aggregate methods of outcome measurement based on the WOMAC Osteoarthritis Index;Barr;J Rheumatol,1994