Impact of head-up tilt on expiratory negative airway pressure ventilation-induced cardiovascular hemodynamics in the halothane-anesthetized intact microminipigs. - Goto A; Kambayashi R; Hagiwara-Nagasawa M; Izumi-Nakaseko H; Takei Y; Kawai S; Matsumoto A; Lurie KG; Sugiyama A (Heart and vessels, 2022)