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Yeap SS, Beaumont M, Bennett A, Keating NA, White DA, Hosking DJ.Yeap SS, et al. Among authors: keating na.Postgrad Med J. 1998 Jun;74(872):349-54. doi: 10.1136/pgmj.74.872.349.Postgrad Med J. 1998.PMID: 9799889Free PMC article.