BRD2 and ovarian hyperstimulation syndrome: However, there was no evidence of beneficial effect in ongoing pregnancy per ET; clinical pregnancy per ET; incidence of OHSS; r-FSH total dose used per treatment cycle; total days of stimulation per treatment cycle; number of retrieved oocytes per oocyte retrieval; number of mature oocytes (metaphase II) per oocyte retrieval; fertilization rate; implantation rate, which was in accordance with the result of the meta-analysis by Monique H Mochtar et al. (2010) [3].