Pourahmad , Zohreh, Bahia Namavar Jahromi, and Maryam Koushkie Jahromi. “Can Physical Activity Patterns before and During Pregnancy and Anxiety Be Related to Preterm Birth?”. Advances in Nursing & Midwifery 31, no. 3 (July 15, 2022): 24–31. Accessed July 9, 2026. https://journals.sbmu.ac.ir/index.php/anm/article/view/39129.