1. Аntipin E.E., Uvarov D.N. Epidural analgesia in the first period of labor – it there an alternative? Anesteziol. i Reanimatol., 2014, no. 1, pp. 18-23. (In Russ.)
2. Kulikov А.V., Shifman E.M. Аnesteziya, intensivnaya terapiya i reanimatsiya v akusherstve i ginekologii. Klinicheskie rekomendatsii. Protokoly lecheniya. [Anesthesia and intensive care in obstetrics and gynecology. Clinical recommendations. Treatment protocols]. 2nd ed., Moscow, Meditsina Publ., 2017, pp. 153-168.
3. Polushin Yu.S., Korostelev Yu.M., Vartanova I.V. et al. Post labor pain syndrome and its impact on the life quality. Anesteziol. i Reanimatol., 2015, no. 2, pp. 47-50. (In Russ.)
4. Ryazanova O.V., Аleksandrovich Yu.S., Gorkovaya I.А. et al. Effect of pain relief in delivery on the frequency of postpartum depression in new mothers. Vestn. Anesteziologii I Reanimatologii, 2017, vol. 14, no. 1, pp. 29-35. (In Russ.)
5. RF Federal Law no. 323-FZ as of 21.11.2011 On the Basics of Health Care for Citizens of the Russian Federation. (Epub. in Russ.)