Kamran HassaniĀ is an associate professor at the School of Mechanical, Industrial, and Aeronautical Engineering of Witwatersrand University in Johannesburg, South Africa. Before that, he was an associate professor at the Department of Biomechanics of the Islamic Azad University in Tehran, Iran, and served as its head for 12 years. His research focuses on biomechanics, mainly cardiovascular engineering. Farhad Azimifar is an assistant professor in the Department of Biomedical Engineering at the Faculty of Engineering and Technology in the Khorasgan Branch of the Islamic Azad University in Isfahan, Iran. His research fields areĀ biomedical engineering (biomechanics), surgical robotics, and biomechatronics.