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APA Citation
Kar, S., Wong, M., Rogozinska, E., & Thangaratinam, S. (n.d.). effects of omega-3 fatty acids in prevention of early preterm delivery: a systematic review and meta-analysis of randomized studies. European journal of obstetrics, gynecology, and reproductive biology, 198, 40–46. http://access.bl.uk/ark:/81055/vdc_100030957118.0x00005a