M.A. Abdullaeva and Rajabova Solikha Rozikovna, “FEATURES OF THE HUMORAL SEROTONIN SYSTEM AND NON- MOTOR MANIFESTATIONS IN PARKINSON’S DISEASE (Literature Review) ”, ta’lim, vol. 36, no. 4, pp. 50–51, Jan. 2025, Accessed: Jan. 18, 2025. [Online]. Available: https://scientific-jl.org/tal/article/view/8964