RT Journal T1 “Fertility effect” or “supporting effect?” —Quantity of children and parental health A1 CHEN Guodong, LEI Xiaoyan, PB Front. Econ. China FD 2009-12-05 YR 2009 JF Frontiers of Economics in China JO Front. Econ. China VO 4 IS 4 SP 601 DO 10.1007/s11459-009-0032-1 K1 quantity of children; fertility effect; supporting effect; parental health LK {https://journal.hep.com.cn/fec/EN/article/article_9582.shtml}