1. Leibfarth JH and Perselliri RH, Agents and Actions, 11, 458 (1981).
2. Rosenthal M. J. Rheumatol, 7, 586 (1980).
3. Sambrook, PN, Browne CD, Champion GD, Day RO, Vallance JB and Warwick N. J. Rheumatol. 9, 6 (1982).
4. Glennas A, Thesis, Oslo (1986).
5. Kean WF, Bellamy N and Brooks PM, Arthr. Rheum. 26, 705 (1983).