Current status of injectable hormonal contraception, with special reference to the monthly method von ABREGO DE AGUILAR, M, ALTAMIRANO, L, RIGIONNI, R, SALGADO, J. S, TORRES, L, VALLECILLOS, G, ZAMBRANO, E. J, ZEA, C, LEON, D. A, CARIDAD DE FUNG, R, GRILLO, A. E, GONZALEZ, J. D. J, CANALES, J. R. L, DEL CARMEN MOJICA SANCHEZ, J, POZUELOS, J. L, RAMIREZ, L

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