Acknowledgements
We thank thousands of healthcare workers who have contributed to data
collection at the provincial, city, township, and village levels. We
appreciate Professor He-Feng Huang (Chairman of the Department of
Reproductive Endocrinology, Women’s Hospital, School of Medicine,
Zhejiang University at the time of the survey) for her coordination of
the investigation in Zhejiang Province. We also thank Professor Canquan
Zhou (Chairman of Chinese Society of Reproductive Medicine at the time
of the survey) for his coordination and organization throughout the
implementation of the project. Furthermore, we appreciate the efforts of
Doctor Geng Yu during the preparation and execution phases of this study
and express our gratitude to Doctor Elyssa Metas (Creighton University
School of Medicine/Valleywise Health Medical Center, Phoenix, AZ, USA)
for her help with editing this article for language. All individuals
named in our acknowledgements provided consent and reported no conflict
of interest.