Progression and natural history of Atypical Parkinsonism (ATPARK): Protocol for a longitudinal follow-up study from an underrepresented population

Yadav R, Dey S, Kumar R, Mohanan AP, Vasudevan GT, Harish M, Kamble N, Holla VV, Mahale RR, Mailankody P, Debnath M, Saini J, Kumar K, Mahadevan A, Subramanian S, Alladi P, Datta I, Sreekumarannair BV, Thomas P, Mehta A, Stezin A, Ingalhalikar M, Ramdas S, Bathula DR, Pal PK.