Borglin N E, Klottrup P
Arzneimittelforschung. 1978;28(12):2354-7.
A trial of a normophasic-principle oral contraceptive ethinylestradiol (Ovanon) is reported. In 130 women observed for a total of 1354 cycles, there were no pregnancies; good cycle control was attained; side-effects were rare, and there was a very high degree of acceptability.
报告了一项关于正常周期原则口服避孕药炔雌醇（奥瓦农）的试验。在130名女性中总共观察了1354个周期，无妊娠发生；实现了良好的周期控制；副作用罕见，且接受度非常高。
