Ropivacaine has no advantage over bupivacaine in thoracic epidural analgesia for patients with pectus excavatum undergoing the Nuss procedure – a single blind randomized clinical trial comparing efficacy and safety - Walaszczyk, Małgorzata; Wiench, Rafał; Copik, Maja; Karpe, Jacek; Łowicka, Małgorzata; Pióro, Anna; Knapik, Piotr; Misiołek, Hanna (Kardiochirurgia i Torakochirurgia Polska/Polish Journal of Thoracic and Cardiovascular Surgery, 2018)