E M Niu

No ORCID on file · 1 paper in corpus
observational 1984
Sheng zhi yu bi yun = Reproduction and contraception

Endomentrial samples were obtained from 116 patients who underwent hysterectomy or dilatation and currettage. The normal menstrual cycles were determined on the basis of clinical and histological features. They were divided into 6 categorie…