1. Hansen et al, 1987
2. No oral steroids No oral steroids No DMARDs* No previous steroids, penicillamine, or sulphasalazine No recent DMARD Oral steroids allowed;Shipley et al
3. Walters and Cawley, 1988'9
4. Needs et al, 1988'8
5. Smith et al, 1988'7