^pMedical;
Centre,;
Peking;
University;
Third;
Hospital,Beijing;
100191,;
China;
Reproductive;
Medical;
Centre,;
Beijing;
Obstetrics;
and;
Gynecology;
Hospital;
Affiliated;
of;
Capital;
Medical;
University,;
Beijing;
100026,China;
^pMedical;
Centre,;
Peking;
University;
Third;
Hospital,Beijing;
100191,;
China;
^pMedical;
Centre,;
Beijing;
Obstetrics;
and;
Gynecology;
Hospital;
Affiliated;
of;
Capital;
Medical;
University,;
Beijing;
100026,China;
多囊卵巢综合征; 月经周期; 医院门诊; 异常特征; 社区; 人群; 内分泌紊乱; 周期长度;