Hadianfard, Mohammadjavad, Abbas Rahimi-Jaberi, and Shahrbanoo Kazemilar. “The Effect of Methylprednisolone Acetate Injection at Cervical Trigger Points in Chronic As Well As Drug Resistant Headache”. JPMRE 1, no. 2 (June 5, 2019): 69–74. Accessed April 19, 2024. https://jpmre.org/index.php/jpmre/article/view/23.