Sherif, M. A., Herold, J., Voelker, W., Maniuc, O., Ertl, G., Praast, C., & Braun-Dullaeus, R. C. (2015). Feasibility of a new method using two-dimensional transesophageal echocardiography for aortic annular sizing in patients undergoing transcatheter aortic valve implantation; a case–control study. BMC Cardiovasc Disord.

Sherif, Mohammad A., Joerg Herold, Wolfram Voelker, Octavian Maniuc, Georg Ertl, Christian Praast, e Ruediger Christian Braun-Dullaeus. "Feasibility of a New Method Using Two-dimensional Transesophageal Echocardiography for Aortic Annular Sizing in Patients Undergoing Transcatheter Aortic Valve Implantation; a Case–control Study." BMC Cardiovasc Disord 2015.

Sherif, Mohammad A., et al. "Feasibility of a New Method Using Two-dimensional Transesophageal Echocardiography for Aortic Annular Sizing in Patients Undergoing Transcatheter Aortic Valve Implantation; a Case–control Study." BMC Cardiovasc Disord 2015.