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Foster A, Yorston D.Foster A, et al.Trans R Soc Trop Med Hyg. 1992 Jul-Aug;86(4):454-5. doi: 10.1016/0035-9203(92)90268-h.Trans R Soc Trop Med Hyg. 1992.PMID: 1440834
Yorston D, Foster A.Yorston D, et al. Among authors: foster a.Trans R Soc Trop Med Hyg. 1992 Jul-Aug;86(4):456-7. doi: 10.1016/0035-9203(92)90270-m.Trans R Soc Trop Med Hyg. 1992.PMID: 1440835
Hennig A, Foster A, Shrestha SP, Pokhrel RP.Hennig A, et al. Among authors: foster a.Bull World Health Organ. 1991;69(2):235-9.Bull World Health Organ. 1991.PMID: 1860152Free PMC article.
Foster A, Yorston D.Foster A, et al.Lancet. 1989 Jan 28;1(8631):226. doi: 10.1016/s0140-6736(89)91249-x.Lancet. 1989.PMID: 2563140No abstract available.