You will be given a definition of a task first, then some input of the task.
Given an abstract, generate a keyword (a noun phrase) that best describes the focus or contribution of the paper. Such keywords can be directly from the given abstract or outside it.

Abstract: Cannulation of the fimbriated end of the fallopian tube during gamete intrafallopian tube transfer (GIFT) may be at times extremely difficult and even require minilaparotomy. An ideal laparoscopic GIFT catheter should be flexible and stirrable, have a small diameter, and yet be sturdy enough to enable its manipulation. Such a catheter was developed in collaboration with Cook Ob/Gyne, a Division of Cook Inc., Indiana, with primary emphasis on easy laparoscopic manipulation. Its use in eight attempts of GIFT resulted in three pregnancies (37%).
Output:
Catheterization