[Induction of ovulation and fertilization in vitro. Attempted optimization using an analog of LH-RH: D-Trp6-LP].

: The authors report the results of LH-RH blocking by an analogue for the purpose of obtaining a more constant inducement of ovulation. It concerns a delayed action product, the inconvenience of which is a possible extended action beyond thirty days, which could have an unfavorable effect on the luteal phase.