Gul, Amara, and Javed Yousaf. “EFFECT OF LEVODOPA ON PERSONALITY DISTURRBANCES AND DYSEXECUTIVE SYMPTOMS IN PATIENTS WITH IDIOPATHIC PARKINSON’S DISEASE”. Pakistan Armed Forces Medical Journal, vol. 68, no. 6, Dec. 2018, pp. 1775-79, https://pafmj.org/PAFMJ/article/view/2613.