Study of the relationship of LDH/AST ratio with the probability of manifestation and duration of HELLP syndrome (multicenter longitudinal analytical clinical trial) - N. Yu. Pylaeva; D. N. Protsenko; Y. M. Shifman; O. V. Ignatenko; A. V. Kulikov; Yu. S. Raspopin; O. V. Ryazanova; N. V. Lishchenko; A. V. Pylaev; E. V. Sadovaya; E. N. Kazinina; K. A. Bozhenkov; et al. (Messenger of ANESTHESIOLOGY AND RESUSCITATION, 2026)