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APA Citation
Kim, S. H., Kim, Y., Sung, J., Choi, S., Oh, S., & Roh, C. (2020). the effects of birth order on neonatal outcomes in early-preterm, late-preterm and term twin infants*. Journal of maternal-fetal & neonatal medicine, 33, 1980–1987. http://access.bl.uk/ark:/81055/vdc_100105428571.0x000023