Manappallil, R. “Cryptococcal Meningitis - a Silent Culprit Behind Delirium in a Patient With Parkinson’s Disease, on Levodopa, Presenting With Urinary Tract Infection”. Italian Journal of Medicine, Vol. 10, no. 2, June 2016, pp. 154-6, doi:10.4081/itjm.2016.619.