Goujani, reza, Rezaeian, mihsen, Manshori, azita, Sheikh Fathollahi, mahmood, Shahraki, mohammad saber, & Razi, saeeid. (2015). Survey on seasonal variation in the frequency of preterm births in the city of Rafsanjan in 2011-2012. Advances in Nursing & Midwifery, 25(88), 57–65. https://doi.org/10.22037/anm.v25i88.9820