Li, Y., Yang, Q. and Jing, C. 2021. Child care choice and children’s cognitive achievement : The case of single mothers Running title: Child care choice and children’s cognitive achievement emphasizing on the preterm born school aged children. The Ethiopian Journal of Health Development . 35, 1 (Feb. 2021). DOI:https://doi.org/10.20372/ejhd.v35i1.4106.