Vass C, Gray E, Payne K. Discrete choice experiments of pharmacy services: a systematic review. Int J Clin Phar. 2016 Jun;38(3):620-30. doi: 10.1007/s11096-015-0221-1
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.