The relationship between the birth rate and the death rate in stable populations with the same fertility but different mortality schedules.
D001741:Black or African American; D001723:Birth Rate; D044383:Black People; D005260:Female; D005298:Fertility; D006801:Humans; D007194:India; D007564:Japan; D009026:Mortality; D009520:New Zealand; D013019:South Africa; D013223:Statistics as Topic; D014481:United States