El-Sharkawi, M., El-Sherif, E., Koptan, W., & ElMiligui, Y. (2012). Pedicle Subtraction Osteotomies for Correcting Sagittal Imbalance. Egyptian Spine Association.
Cita Chicago Style (17a ed.)El-Sharkawi, Mohammad, Essam El-Sherif, Wael Koptan, y Yasser ElMiligui. Pedicle Subtraction Osteotomies for Correcting Sagittal Imbalance. Egyptian Spine Association, 2012.
Cita MLA (8a ed.)El-Sharkawi, Mohammad, et al. Pedicle Subtraction Osteotomies for Correcting Sagittal Imbalance. Egyptian Spine Association, 2012.
Precaución: Estas citas no son 100% exactas.