A comparative study between a calcium channel blocker (Nicardipine) and a combined alpha-beta-blocker (Labetalol) for the control of emergence hypertension during craniotomy for tumor surgery - Kross, R A; Ferri, E; Leung, D; Pratila, M; Broad, C; Veronesi, M (Anesth Analg, 2000)
et al.