Funding for this research was provided by:
National Key Research and Development Program of China (2016YFC1000307)
The Non-profit Central Research Institute Fund of National Research Institute for Family Planning (2020GJZ05)
Received: 30 August 2022
Accepted: 10 January 2023
First Online: 12 January 2023
: Written informed consent was obtained from the patient’s parents. This study was approved by the ethical committees of the National Research Institute for Family Planning and clearly stated that the blood samples would be used for scientific research purposes, including genetic studies. All the procedures followed were in accordance with the Helsinki Declaration.
: Not Applicable.
: The authors declare that they have no competing interests.