Kamenova, S. U., A. D. . Aralbayeva, S. . Iskakova, A. . Kondybayeva, K. K. Kuzhybayeva, and D. Truong. “NON-MOTOR VISUAL DISORDERS IN KAZAKHTAN PATIENTS WITH PARKINSON’S DISEASE”. Interdisciplinary Approaches to Medicine, vol. 2, no. 2, Dec. 2021, pp. 3-12, doi:10.26577/IAM.2021.v2.i2.07.