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Sharma BK, Santana IA, Wood EC, Walt RP, Pereira M, Noone P, Smith PL, Walters CL, Pounder RE.Sharma BK, et al. Among authors: walters cl.Br Med J (Clin Res Ed). 1984 Sep 22;289(6447):717-9. doi: 10.1136/bmj.289.6447.717.Br Med J (Clin Res Ed). 1984.PMID: 6434053Free PMC article.