N. A. Zulkifli, JesJeet Singh Gill Jeswant Singh, and Ng Chong Guan, “Sudden Cognitive Decline in Bipolar Mood Disorder Patient with Underlying Severe Tardive Dyskinesia After the Failure of His Deep Brain Stimulation Device Battery”, MJoSHT, vol. 7, no. 3, pp. 79–81, Sep. 2021.