title: A preliminary inquiry on the problem of unplanned (extra-quota) second births.
authors.forename: L
authors.initials: L
authors.lastname: Zhao
authors.forename: C
authors.initials: C
authors.lastname: Zhu
mesh_terms: D001208:Asia; D002681:China; D003710:Demography; D003906:Developing Countries; D016656:Family Planning Policy; D005202:Asia, Eastern; D005298:Fertility; D008393:Marriage; D011153:Population; D011155:Population Control; D011157:Population Dynamics; D011247:Pregnancy; D011640:Public Policy; D012098:Reproduction; D012725:Sexual Behavior
keywords: Antinatalist Policy; Asia; China; Demographic Factors; Developing Countries; Eastern Asia; Family Planning Policy; Fertility; Marriage Age; Marriage Postponement; One Child Policy; Policy; Population; Population Control; Population Dynamics; Population Policy; Pregnancy; Pregnancy, Unplanned; Reproduction; Reproductive Behavior; Social Policy