Hamdy, T.M., Galal, M., Ismail, A.G. and Abdelraouf, R.M. 2019. Evaluation of Flexibility, Microstructure and Elemental Analysis of Some Contemporary Nickel-Titanium Rotary Instruments. Open Access Macedonian Journal of Medical Sciences. 7, 21 (Oct. 2019), 3647–3654. DOI:https://doi.org/10.3889/oamjms.2019.811.