For citations:
Sivkov O.G., Sivkov A.O., Leiderman I.N. Prediction of an unfavorable outcome of a critical condition with the combined use of the APACHE - II, SOFA,NRS- 2002 scales. Yakut Medical Journal. 2021;(3):54-57. https://doi.org/10.25789/YMJ.2021.75.14