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Ugalde UO, Virto MD, Pitt D.Ugalde UO, et al. Among authors: pitt d.Antonie Van Leeuwenhoek. 1990 Jan;57(1):43-9. doi: 10.1007/BF00400335.Antonie Van Leeuwenhoek. 1990.PMID: 2372211
Ugalde UO, Pitt D.Ugalde UO, et al. Among authors: pitt d.Antonie Van Leeuwenhoek. 1988;54(3):221-8. doi: 10.1007/BF00443580.Antonie Van Leeuwenhoek. 1988.PMID: 3421668
Ugalde UO, Hernandez A, Galindo I, Pitt D, Barnes JC, Wakley G.Ugalde UO, et al. Among authors: pitt d.J Gen Microbiol. 1992 Oct;138(10):2205-12. doi: 10.1099/00221287-138-10-2205.J Gen Microbiol. 1992.PMID: 1479349