Andronis L, Oppong RA, Manga N, Senanayake E, Gopal S, Charman S, Giri R, Luckraz H. Is the Venner-PneuX endotracheal tube system a cost-effective option for post cardiac surgery care? Ann Thorac Surg. 2018 Sep;106(3):757-63. doi: 10.1016/j.athoracsur.2018.03.058
Jung T, Scott T, Davies HTO, Bower P, Whalley D, McNally R, Mannion R. Instruments for exploring organizational culture: a review of the literature. Public Adm Rev. 2009 Oct 12;69(6):1087-96.