To send content items to your account,
please confirm that you agree to abide by our usage policies.
If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your account.
Find out more about sending content to .
To send content items to your Kindle, first ensure email@example.com
is added to your Approved Personal Document E-mail List under your Personal Document Settings
on the Manage Your Content and Devices page of your Amazon account. Then enter the ‘name’ part
of your Kindle email address below.
Find out more about sending to your Kindle.
Note you can select to send to either the @free.kindle.com or @kindle.com variations.
‘@free.kindle.com’ emails are free but can only be sent to your device when it is connected to wi-fi.
‘@kindle.com’ emails can be delivered even when you are not connected to wi-fi, but note that service fees apply.
This chapter reviews the regimens used in controlled ovarian hyperstimulation for in vitro fertilization (IVF) in the following categories: normal, poor, and high responders. Luteal suppression with gonadotropin releasing hormone (GnRH) agonists is usually associated with higher cancellation rates, increased dosages of gonadotropins, and prolonged days of stimulation in low responders. Several studies have compared the use of GnRH antagonist with the long GnRH agonist protocols in low responders. There are two different methods of ovulatory triggers for oocyte maturation: exogenous human chorionic gonadotrpin (hCG) and GnRH agonist in antagonist cycles. Minimal stimulation protocols are being used more commonly in IVF. The use of such stimulation protocols can be applied in cases of both poor and high responders. When in vitro maturation (IVM) is performed, fertilization is usually performed with intracytoplasmic sperm injection (ICSI), and endometrial preparation with estrogen and progesterone is necessary.