[1. Reinebrant HE, Leisher SH, Coory M, Henry S, Wojcieszek AM, Gardener G, et al. Making stillbirths visible: a systematic review of globally reported causes of stillbirth. BJOG. 2018;125(2):212-24.10.1111/1471-0528.14971]Search in Google Scholar
[2. WHO. Maternal, newborn, child and adolescent health [Internet] 2014. Geneva [cited 2018 Jan 29]: [about 1 screen] Available from: http://www.who.int/maternal_child_adolescent/epidemiology/stillbirth/en/]Search in Google Scholar
[3. WHO. Every newborn: an action plan to end preventable deaths [Internet] 2014. Geneva [cited 2018 Jan 29] Available from: http://apps.who.int/iris/bitstream/handle/10665/127938/9789241507448_eng.pdf;jsessionid=668161FB5293B1F6E7BAB5EA9CD04C27?sequence=1]Search in Google Scholar
[4. United Nations. 17 Sustainable Development Goals (SDGs). [Internet] 2015. Geneva [cited 2018 Jan 29] Available from: http://www.un.org/sustainabledevelopment/]Search in Google Scholar
[5. Lawn JE, Blencowe H, Waiswa P, Amouzou A, Mathers C, Hogan D, et al. Stillbirths: rates, risk factors, and acceleration towards 2030. Lancet. 2016;387(10018):587-603.10.1016/S0140-6736(15)00837-5]Search in Google Scholar
[6. United Nations. Millennium Development Goals (MDGs) [Internet] 2015. Geneva [cited 2018 Jan 29] Available from: http://www.un.org/millenniumgoals/]Search in Google Scholar
[7. NSI. Infostat [Internet]. Sofia [cited 2018 Jan 29] Available from: https://infostat.nsi.bg/infostat/pages/external/login.jsf]Search in Google Scholar
[8. Eurostat. Statistics Explained: Marriage and divorce statistics [Internet]. Luxembourg [cited 2018 Jan 29], Available from: http://ec.europa.eu/eurostat/statistics-explained/index.php/Marriage_and_divorce_statistics#A_rise_in_births_outside_marriage]Search in Google Scholar
[9. Marripedia. Effects of out-of-wedlock birth on children [Internet]. Rockford [cited 2018 Jan 29] Available from: http://marripedia.org/effects_of_out-of-wedlock_births_on_children]Search in Google Scholar
[10. Kaloyanov T. Extramarital birth-rate in the Republic of Bulgaria – trends and territorial differences during the 1995-2015 period. Scientific papers of University of National and World Economy. 2017;1(1):11-33.]Search in Google Scholar
[11. Page JM, Silver RM. Interventions to prevent stillbirth. Seminn Fetal Neonatal Med. 2017;22(3):135-45.10.1016/j.siny.2017.02.01028457816]Search in Google Scholar
[12. Gordon CS. Screening and prevention of stillbirth, Best Prac tRes Clin Obstet Gynaecol. 2017 Jan:71-82.10.1016/j.bpobgyn.2016.08.00227729208]Search in Google Scholar
[13. Kamburova, M, Hristova P, Georgieva S, Khan A. Adverse effects of maternal age, weight and smoking during pregnancy in Pleven, Bulgaria. SEEJPH. 2015;(4):39-48.]Search in Google Scholar