[Observation on effect of five evolutive phases and six climatic factors on pregnancy and sterility].

Objective： To verify statements about the effect of five evolutive phases and six climatic factors in 《huang di nei jing》 on pregnancy and sterility. Methods： Data of missed abortion from Nanjing Maternity and Child Health Care Hospital between 2006-2020 and Yangzhou Maternity and Child Health Care Hospital between 2012-2020 were collected. According to Chinese sexagenary cycle heavenly stems and earthly branches of each year between 2006-2020 was determined.

[Semen quality and its influencing factors in preconception males in Nanjing area].

Objective: To investigate the semen quality and its influencing factors in preconception males in Nanjing area so as to provide some evidence for working out effective intervention measures.

Methods: Totally 687 men receiving preconceptional physical examination were enrolled in this study. A questionnaire survey was conducted among the subjects along with an analysis of their semen quality.