知乎，让每一次点击都充满意义 —— 欢迎来到知乎，发现问题背后的世界。 If you experience a few or 4 unsuccessful rounds of IUI, your medical doctor will very likely advise transferring to IVF. Before the ultrasound-guided transvaginal technique, laparoscopic or abdominal retrievals of oocytes were executed. Though mainly fallen away from observe, laparoscopic and abdominal egg retrievals ... https://www.ivf.com.mx/