Gynaecology & Obstetrics Which of the following helps to prevent premature LH surge during oocyte retrieval for in vitro fertilization A HCG B Oestrogen C Progesterone D Leuprolide 💡 Explanation Which of the following helps to prevent premature LH surge during oocyte retrieval for in vitro fertilization ✓ Correct Answer: D. Leuprolide