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Saifuddin A, Da Costa P, Chalmers AG, Carey BM, Robertson RJ.Saifuddin A, et al.Clin Radiol. 1992 Jan;45(1):13-7. doi: 10.1016/s0009-9260(05)81459-x.Clin Radiol. 1992.PMID: 1740027
O'Driscoll CM, Irwin A, Saifuddin A.O'Driscoll CM, et al. Among authors: saifuddin a.Skeletal Radiol. 1996 Apr;25(3):225-30. doi: 10.1007/s002560050069.Skeletal Radiol. 1996.PMID: 8741056