Mohammad Sakhawat Hossen Khan, Umme Kulsum Chy, Md Rashedul Islam, Rumana Habib, Tanbin Rahman, Jamal Uddin Ahmed and Haque, W. M. M. U. . (2024) “Relationship of vitamin D deficiency with motor functions of Parkinson’s disease”, BIRDEM Medical Journal, 14(2), pp. 75–80. doi: 10.3329/birdem.v14i2.73305.