Cardiorespiratory and hemodynamic effects of medetomidine or xylazine with atropine and diazepam premedication for total intravenous anesthesia induced and maintained with propofol/fentanyl in dogs undergoing surgery / Tomáš Lipták, Igor Capík, Valent Ledecký, Oskar Nagy, Mária Kuricová, Csilla Tóthová, Aladár Maďari, Jana Farbáková, Vladimír Petrovič, Slavomír Horňák KE304