With the average lifespan, marriage and childbearing ages all continuing to rise.鉴于平均寿命 、 适婚年龄、和生育年龄持续上升.Objective To explore the etiology of mental retardation, amenorrhea , abnormal childbearing history and abnormal se...
women of childbearing age育龄妇女And the overall contraceptive prevalence rate of married women of childbearing age has reached 83 percent.已婚育龄妇女综合避孕率达到83%.With the average lifespan, marriage and childbearing ages all contin...