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Sher A, al-Motawwa YK, al-Owaish RA.Sher A, et al.Trans R Soc Trop Med Hyg. 1988;82(5):670. doi: 10.1016/0035-9203(88)90189-7.Trans R Soc Trop Med Hyg. 1988.PMID: 3252583No abstract available.