title: Analysis of change in sperm quality of Chinese fertile men during 1981-1996.
authors.forename: S C
authors.initials: SC
authors.lastname: Zhang
authors.forename: H Y
authors.initials: HY
authors.lastname: Wang
authors.forename: J D
authors.initials: JD
authors.lastname: Wang
mesh_terms: D001208:Asia; D001695:Biology; D002681:China; D019411:Clinical Laboratory Techniques; D003906:Developing Countries; D003933:Diagnosis; D005202:Asia, Eastern; D005835:Genitalia; D005854:Germ Cells; D007246:Infertility; D008571:Men; D010827:Physiology; D012098:Reproduction; D013076:Sperm Count; D013094:Spermatozoa; D014566:Urogenital System
keywords: Asia; Biology; China; Developing Countries; Eastern Asia; Examinations And Diagnoses; Genitalia; Germ Cells; Infertility--men; Laboratory Examinations And Diagnoses; Laboratory Procedures; Men; Physiology; Reproduction; Research Report; Sperm Count; Spermatozoa--analysis; Urogenital System