Nishiyama, T. “Effects of Nicardipine Versus Diltiazem on Catecholamine Secretion and Renin-Angiotensinaldosterone System During Propofol-Fentanylnitrous Oxide Anesthesia”. Anaesthesia, Pain & Intensive Care, Jan. 2019, pp. 21-25, https://mail.apicareonline.com/index.php/APIC/article/view/221.