Ivachevskij M, Rusyn A, Ivachevska V. INFERIOR VENA CAVA COLLAPSIBILITY INDEX AS A NON-INVASIVE METHOD OF ASSESSING THE VOLEMIC STATUS OF PATIENTS DURING SPINE INTERVENTIONS. OTP [Internet]. 2024Apr.14 [cited 2024Jul.3];(1):33-7. Available from: http://otp-journal.com.ua/article/view/301619