A. Gul and J. Yousaf, “HYPOVITAMINOSIS D, CORTICAL AND SUB-CORTICAL COGNITIVE FUNCTIONING DEFICTS IN PATIENTS WITH PARKINSON’S DISEASE DEMENTIA”, Pak Armed Forces Med J, vol. 68, no. 6, pp. 1605–08, Dec. 2018, Accessed: Nov. 29, 2024. [Online]. Available: https://pafmj.org/PAFMJ/article/view/2556