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Birkett V, Ring EF, Elvins DM, Taylor G, Bhalla AK.Birkett V, et al. Among authors: ring ef.Clin Rheumatol. 2003 Sep;22(3):203-7. doi: 10.1007/s10067-003-0699-0.Clin Rheumatol. 2003.PMID: 14505211
Ring EF.Ring EF.IEEE Eng Med Biol Mag. 1998 Jul-Aug;17(4):19-24. doi: 10.1109/51.687959.IEEE Eng Med Biol Mag. 1998.PMID: 9672806No abstract available.