Kvaratskhelia, Natia, and Vasil Tkeshelashvili. “Preterm Birth in Georgia. Analysis Based on the Data of ‘Georgian Birth Registry’”. Caucasus Journal of Health Sciences and Public Health, vol. 4, no. 2, Oct. 2020, pp. 4-13, https://caucasushealth.ug.edu.ge/index.php/caucasushealth/article/view/280.