Hassanipour, S., S. Bagheri Faradonbeh, K. Momeni, Z. Heidarifard, M.-J. Khosousi, L. Khosousi, H. Ameri, and M. Arab-Zozani. “A Systematic Review and Meta-Analysis of Pregnancy and COVID-19: Signs and Symptoms, Laboratory Tests, and Perinatal Outcomes”. International Journal of Reproductive BioMedicine (IJRM), Vol. 18, no. 12, Dec. 2020, pp. 1005–1018, doi:10.18502/ijrm.v18i12.8022.