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[Ectopic pregnancy. Review of 450 cases].
Esperanza Aguilar R, Martínez Ríos E, Carrasco Vázquez E. Esperanza Aguilar R, et al. Among authors: martinez rios e. Ginecol Obstet Mex. 1972 Aug;32(190):181-8. Ginecol Obstet Mex. 1972. PMID: 5069721 Spanish. No abstract available.