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Bird HA, Ring EF, Daniel R, Bacon PA.Bird HA, et al. Among authors: ring ef.Curr Med Res Opin. 1977;5(2):141-6. doi: 10.1185/03007997709110154.Curr Med Res Opin. 1977.PMID: 340129Clinical Trial.
Bird HA, Ring EF, Bacon PA.Bird HA, et al. Among authors: ring ef.Ann Rheum Dis. 1979 Feb;38(1):36-9. doi: 10.1136/ard.38.1.36.Ann Rheum Dis. 1979.PMID: 373651Free PMC article.Clinical Trial.
Hall ND, Bird HA, Ring EF, Bacon PA.Hall ND, et al. Among authors: ring ef.Agents Actions. 1979 Apr;9(1):97-102. doi: 10.1007/BF02024139.Agents Actions. 1979.PMID: 380312Clinical Trial.
Bird HA, Ring EF.Bird HA, et al. Among authors: ring ef.Ann Rheum Dis. 1978 Feb;37(1):78-9. doi: 10.1136/ard.37.1.78.Ann Rheum Dis. 1978.PMID: 629610Free PMC article.
Bird HA, Ring EF.Bird HA, et al. Among authors: ring ef.Rheumatol Rehabil. 1978 May;17(2):103-6. doi: 10.1093/rheumatology/17.2.103.Rheumatol Rehabil. 1978.PMID: 663520No abstract available.
Bird HA, Ring EF, Bacon PA.Bird HA, et al. Among authors: ring ef.Rheumatol Rehabil. 1978 May;17(2):107-12. doi: 10.1093/rheumatology/17.2.107.Rheumatol Rehabil. 1978.PMID: 663521No abstract available.