Hemodynamic support Prospective multicenter observational study of patients in shock treated with vasopressin: Protocol of the VASOPRESIN with vasopressin: VASOPRES Registry study protocol - García Álvarez R; Ramasco F; Nieves Alonso J; Mouriz L; Rama P; Bilbao I; Pérez Carbonell A; Rodenas MA; Ortega F; Vives M; Calvo CA; Taboada M; et al. (Revista Española De Anestesiología Y Reanimación, 2025)