Secular trends and urban–rural disparities in the median age at menarche among Chinese han girls from 1985 to 2019
Ning Ma, Di Shi, Jiajia Dang, Panliang Zhong, Yunfei Liu, Shan Cai, Yanhui Dong, Peijin Hu, Jun Ma, Yi Song
Topics & Concepts
MenarcheDemographyMedicineSecular variationRural areaPediatricsGeographySociologyPathologyHypothalamic control of reproductive hormonesMenopause: Health Impacts and TreatmentsMenstrual Health and Disorders