The crowded earth.
D000019:Abortifacient Agents; D000349:Africa; D017954:Africa South of the Sahara; D000351:Africa, Eastern; D000569:Americas; D001208:Asia; D001210:Asia, Southeastern; D001530:Belgium; D001695:Biology; D001723:Birth Rate; D001938:Brazil; D003710:Demography; D019049:Developed Countries; D003906:Developing Countries; D004703:Endocrine System; D005060:Europe; D005193:Family Planning Services; D005202:Asia, Eastern; D005298:Fertility; D006285:Health Planning; D007214:Indonesia; D007564:Japan; D007630:Kenya; D007843:Latin America; D008295:Malawi; D010827:Physiology; D011153:Population; D011157:Population Dynamics; D011453:Prostaglandins; D011640:Public Policy; D013020:South America
D000019:Abortifacient Agents; D011453:Prostaglandins
Abortifacient Agents; Africa; Africa South Of The Sahara; Americas; Asia; Belgium; Biology; Birth Rate; Brazil; Demographic Factors; Developed Countries; Developing Countries; Eastern Africa; Eastern Asia; Endocrine System; English Speaking Africa; Europe; Family Planning; Family Planning Programs; Fertility; Fertility Measurements; Indonesia; Japan; Kenya; Latin America; Malawi; Physiology; Policy; Population; Population Dynamics; Population Policy; Prostaglandins; Social Policy; South America; Southeastern Asia; Western Europe