A. Adolfsson, P.G. Larsson. Cumulative incidence of previous spontaneous abortion, in: Sweden 1983-2003: A register study, Acta Obstetricia et Gynecologica Scandinavica, Vol. 85, No. 6, 2006, pp. 741-747.
 M. Whitworth, L. Bricke, J.P. Neilson, T. Dowswell, Ultrasound for fetal assessment in early pregnancy, Cochrane Database of Systematic Reviews 2010, Issue 4 [Internet] Available at: http://onlinelibrry.wiley.com/o/cochrane/clsysrev/articles/CD007058/frame.html.[accessed 12-04-2010].
 A.M. Nybo Andersen, J. Wohlfarth, P. Christens, J. Olsen, M. Melbye. Maternal age and fetal loss: population based register linkage study. British Medical Journal, Vol. 320, No. 7251, 2000, pp.1708-1712.
 Modifications Recommended by FIGO as Amended October 14. WHO: recommended definitions, terminology and format for statistical tables related to the perinatal period and use of a new certificate for cause of perinatal deaths. Acta Obstetricia Gynecologica Scandinavica, Vol. 56, 1977, pp. 247-253.
 B. Wickberg, Psychological instance during pregnancy and the time postpartum – a method to maternity health care. [Psykologiska insatser under graviditet och postpartumtiden metod for modrahalsovarden], in: B. Sjogren B (Ed.), Psykosocial obstetrik, Kropp sjal och barnafodande. Lund: Studentlitteratur, 2005, pp. 71-88.
 H. Rowe, Spontaneous pregnancy loss, in: Mental health aspects of women′s reproductive health: A global review of the literature. WHO 2009. Available at: http://whqlibdoc.who.int/publications/2009/9789241563567_eng.pdf [Accessed 07-07-2012].
 K.M. Swanson, S. Connor, S.N. Jolley, M. Pettinato, T.J. Wang. Context and evolution of women′s responses to miscarriage during the first year after loss. Research in Nursing and Health. Vol. 30, No. 1, 2007, pp. 2-16.
 F. Blohm, M. Hahlin, S. Nielsen, M. Milsom. Fertility after a randomized trial of spontaneous abortion managed by surgical evacuation or expectant treatment. The Lancet, Vol. 349, No. 9057, 1997, pp. 995.
 U.H. Graneheim, B. Lundman. Qualitative content analysis in nursing research: Concepts, procedures and measures to achieve trustworthiness. Nurse Education Today, Vol. 24, No. 2, 2004, pp. 105-112.
 A. Adolfsson, C. Bertero, P.G. Larsson. Effect of a structured follow-up visit to a midwife on women with early miscarriage: a randomized study. Acta Obstetricia et Gynecologica Scandinavica, Vol. 85, No. 3, 2006, pp. 330-335.
 D. Armstong, M. Hutti, Pregnancy after perinatal loss: the relationship between anxiety and prenatal attachment, Journal of Obstetric, Gynecologic and Neonatal Nursing Vol. 27, 1998, pp. 183-189.
 M. Johnson, E. Tsartsara. The impact of miscarriage on women's pregnancy-specific anxiety and feelings of prenatal maternal-fetal attachment during the course of a subsequent pregnancy: an exploratory follow-up study Journal of Psychosomatic Obstetrics and Gynecology, Vol. 27. No. 3, 2006, pp. 173-182.