TY - RPRT A1 - Cho, S. A1 - Lee, J. A1 - Kim, G. T1 - Factors and policy challenges for married couple’s childless choice Y1 - 2021 DO - 10.23060/kihasa.a.2021.33 PB - Korea Institute for Health and Social Affairs CY - Sejong T3 - KIHASA annual research report; 2021-33 ER -