Busra M, Yuliarni Syafrita, Hendra Permana. Relationship of Serum Tau Levels with Cognitive Functions and Factors Affecting The Cognitive Function Decrease in Parkinson’s Disease Patients. Bioscmed [Internet]. 2021Mar.12 [cited 2025Aug.2];5(6):513-9. Available from: https://www.bioscmed.com/index.php/bsm/article/view/317