Funding for this research was provided by:
Chongqing YuZhong Science Project (20170127)
clinical research of Chinese Medical Association (17020430712, 17020430713)
Received: 31 January 2020
Accepted: 8 May 2020
First Online: 20 May 2020
Ethics approval and consent to participate
: This study was approved by the Institutional Review Board (IRB) of Chongqing Health Center for Women and Children. In accordance with the measures of the People’s Republic of China on the administration of Human Assisted Reproductive Technology, the ethical principles of the Human Assisted Reproductive Technology as well as the Helsinki declaration. In addition, written and informed consent was obtained from each participant that accepted the use of adjuvants, and they were required to pay for these adjuvants over and above the IVF treatment charges.
: Not applicable.
: The authors declare that they have no conflict of interests.