To analyze the age of menarche of Chinese reproductive women and some related factors. Material & Methods The data use......

AIM:To compare the laparoscopic and the open gastrectomy approaches for short term morbidity,length of hospital stay and......

摘 要：“一带一路”倡议坚持共商共建共享的基本原则，为不同国家和地区探索更加适宜自身的发展模式，提供了一个开放性的倡议框架。日......

宁夏盐池县花马池镇杨寨子村位于我国北方典型的农牧交错带上,由于气候因素、地理位置及土壤状况导致传统农作物产量低且不均衡,近......

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