Yadollahpour, Ali. “A Comparison of N-Acetyl Aspartate Concentrations Between Two Main Subtypes of Multiple Sclerosis Using Magnetic Resonance Spectroscopy Imaging”. Asian Journal of Pharmaceutics (AJP) 10, no. 04 (February 20, 2017). Accessed May 2, 2024. http://www.asiapharmaceutics.info/index.php/ajp/article/view/990.