Visual Hallucination Inventory (VHI) and NMS Questionnaire (NMSQ) in identification and characterisation of Visual Hallucinations (VH) in elderly patients with Parkinson's disease (PD). (January 2016) - Gangadharan, Sanjay; Padmakumar, Govind; Rees, Merridie; Johnson, Angela; Withanage, Asanka; Padmakumar, Chandrasekhara Pillai