Dobrosavljevic, A., Rakic, S., & Mihajlovic, S. (2019). Risk of spontaneous preterm labor in pregnancies achieved by in vitro fertilization and complicated with severe form of ovarian hyperstimulation syndrome: A case control study: Severe OHSS and preterm birth. Pakistan Journal of Medical Sciences, 35(4). https://doi.org/10.12669/pjms.35.4.145