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APA Citation
Dane, B., Dane, C., Batmaz, G., Ates, S., & Dansuk, R. (n.d.). first trimester maternal serum pregnancy-associated plasma protein-A is a predictive factor for early preterm delivery in normotensive pregnancies. Gynecological endocrinology, 29, 592–595. http://access.bl.uk/ark:/81055/vdc_100024526693.0x00002e