Sarathchandran Pournamy, Soman Sheena, Sarma Gangadhara, Krishnan Syam, Kishore Asha
Comprehensive Care Center for Movement Disorders, Sree Chitra Tirunal Institute for Medical Sciences and Technology, Kerala, India.
Mov Disord. 2013 Nov;28(13):1901-2. doi: 10.1002/mds.25557. Epub 2013 Jun 25.