Cetin, Abdurrahman, and Mehmet Tahir Gokdemir. 2021. “Fatigue Severity Scale, Fibromyalgia Impact Questionnaire, and Visual Pain Scale Scores in Patients With Fibromyalgia ”. Annals of Medical Research 26 (3): 0389-92. http://www.annalsmedres.org/index.php/aomr/article/view/1339.