Investigating the Synergistic Effects of Transcranial Direct Current Stimulation and Cranial Electrical Stimulation in Treatment of Major Depression in A Double Blinded Controlled Trial

Introduction Depression is one of the most common disorders worldwide and more than 350 million people suffer from various types of this disease [1]. Its symptoms include fatigue, sleeplessness, suicidal thoughts, suicide attempts, digestive problems, frustration, isolation, lack of concentrati