G. Oropeza

A multicentred phase III comparative study of two hormonal contraceptive preparations given once-a-month by intramuscular injection. II. The comparison of bleeding patterns. World Health Organization Task Force on Long-Acting Systemic Agents for Fertility Regulation.

A. Pinol, D. Machin, B. Buscà, 1989, Contraception.

Pharmacodynamic assessment of dihydroxyprogesterone acetophenide plus estradiol enanthate as a monthly injectable contraceptive.

J. Garza-flores, G. Pérez-palacios, R. Schiavon, 1986, Contraception.

Serum estrogens and ovulation return in chronic users of a once-a-month injectable contraceptive.

J. Garza-flores, G. Pérez-palacios, R. Schiavon, 1988, Contraception.

A multicenter comparative study on the efficacy, safety, and acceptability of the contraceptive subdermal implants Norplant and Norplant-II.

S. Bassol, J. Garza-flores, G. Alvarado, 1997, Contraception.