GNRH1 and adenomyosis: Long GnRH protocol leads to a lower clinical pregnancy rate (47.06% versus 64.42%, P=0.028), lower implantation rate (31.91% versus 46.74%, P=0.005), and a higher rate of spontaneous abortion (33.33% versus 13.43%, P=0.034) in females with adenomyosis compared to females without adenomyosis.