1. Bruno, V., Ticconi, C., Sarta, S., Piccione, E. & Pietropolli, A. What has to be pointed out in unexplained recurrent pregnancy loss research in the unsolved fields: lessons from clinic. An Italian RPL Unit experience. Ital J Gynaecol Obstet 2019;31(N. 2) (accepted article, in press).
2. RECURRENT PREGNANCY LOSS Guideline of the European Society of Human Reproduction and Embryology. ESHRE Early Pregnancy Guid Dev Gr (2017).
3. Jaslow, C. R., Carney, J. L. & Kutteh, W. H. Diagnostic factors identified in 1020 women with two versus three or more recurrent pregnancy losses. Fertil Steril (2010).
4. Jauniaux, E., Farquharson, R. G., Christiansen, O. B. & Exalto N. Evidence-based guidelines for the investigation and medical treatment of recurrent miscarriage. Hum Reprod (2006).
5. RCOG. The Investigation and Treatment of Couples with Recurrent First- trimester and Second-trimester Miscarriage. R Coll Obstet Gynaecol Green-top Guidel No 17 (2013).