Evaluation of Depth of Anesthesia Sleep Quality in Swine Undergoing Hernia Repair: Effects of Romifidine/Ketamine-Diazepam Protocols with and Without Tramadol and the Potential Role of Serotonin as a Biomarker. - Bruno F; Leonardi F; Spadola F; Bruschetta G; Licata P; Neve VC; Costa GL (Veterinary sciences, 2025)