1. An approach to developing criteria for the clinical diagnosis and classification of osteoarthritis;Altman;Journal of Rheumatology,1983
2. Statistical Methods in Medical Research;Armitage,1971
3. Osteoarthritis: pathology and clinical patterns;Bland,1981
4. Naproxen in osteoarthritis;Blechman;Annals of Rheumatic Diseases,1978
5. Preference for endpoint measures in clinical trials: results of structured workshops;Bombardier;Journal of Rheumatology,1982