Some fact findings on pregnancy and birth interval:  based on pregnancy history data on currently pregnant women residing in Sungdong Gu, Seoul.
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D001721:Birth Intervals; D001723:Birth Rate; D003710:Demography; D004522:Educational Status; D005298:Fertility; D007723:Korea; D008423:Maternal Age; D011153:Population; D011157:Population Dynamics; D017584:Reproductive History; D012494:Sampling Studies
Birth Intervals; Demographic Factors; Educational Status; Fertility; Fertility Measurements; First Pregnancy Intervals; Korea; Maternal Age; Population; Population Dynamics; Pregnancy History; Pregnancy Intervals; Research Report; Sampling Studies