References

1. Van Den Eeden S. K., Tanner C. M., Bernstein A. L., Fross R. D., Leimpeter A, Bloch D. A., et al . Incidence of parkinson’s disease: Variation by age, gender, and race/ethnicity. Am J Epidemiol. 2003;11:1015-22.

   [Google Scholar]
2. Wolters E. C., . Non-motor extranigral signs and symptoms in Parkinson’s disease. Parkinsonism Relat Disord. 2009;15:S6-12. Suppl 3

   [Google Scholar]
3. Suzuki K, Miyamato M, Iwanami M, Hirata K, . Sleep disturbances associated with Parkinson’s disease. Parkinsons Dis 2011 (2011): [About 10 p.]. Available from [Last cited in 2012 May 25]

   [Publisher] [Google Scholar]
4. Yong M. H., Fook-Chong S, Pavanni R, Lim L. L., Tan E. K., . Case control polysomnographic studies of sleep disorders in parkinson’s disease. PLoS One. 2011;6:e22511. Available from [Last cited in 2012 May 25]

   [Publisher] [Google Scholar]
5. Menza M, Dobkin R. D., Marin H, Bienfait K, . Sleep disturbances in parkinson’s disease. Mov Disord. 2010;25:S117-22. Suppl 1

   [Google Scholar]
6. Postuma R. B., Gagnon J. F., Rompre S, Montplaisir J, . Severity of REM atonia loss in idiopathic REM behaviour disorder predicts Parkinson’s disease. Neurology. 2010;74:239-44.

   [Google Scholar]
7. American Academy of Sleep Medicine , . International classification of sleep disorders.Diagnostic and coding manual. (2 nd ed). Westchester, Illinois: American Academy of Sleep Medicine; 2005. In:

   [Google Scholar]
8. Bharucha N. E., Bharucha E. P., Bharucha A. E., Bhise A. V., Schoenberg B. S., . Prevalence of Parkinson’s disease in the Parsi community of Bombay, India. Arch Neurol. 1988;45:1321-3.

   [Google Scholar]
9. Vibha D, Shukla G, Goyal V, Singh S, Srivastava A. K., Behari M, . RBD in Parkinson’s disease: A clinical case control study from North India. Clin Neurol Neurosurg. 2011;113:472-6.

   [Google Scholar]
10. Iber C, Ancoli-Israel S, Chesson A, Quan S. F., . The AASM manual for the scoring of sleep and associated events: Rules, terminology, and technical specification. Westchester, IL: American Academy of Sleep Medicine; 2007. editors

    [Google Scholar]
11. Boeve B. F., . REM sleep behavior disorder: Updated review of core features, the RBD-neurodegenerative disease association, evolving concepts, controversies and future direction. Ann N Y Acad Sci. 2010;1184:15-54.

    [Google Scholar]
12. Bliwise D. L., Rye D. B., . Elevated PEM (phasic electromyographic metric) rates identify rapid eye movement behavior disorder patients on nights without behavioral abnormalities. Sleep. 2008;31:853-7.

    [Google Scholar]
13. Postuma R. B., Gagnon J. F., Vendette M, Charland K, Montplaisir J, . REM sleep behaviour disorder in Parkinson’s disease is associated with specific motor features. J Neurol Neurosurg Psychiatry. 2008;79:1117-21.

    [Google Scholar]
14. Claassen D. O., Josephs K. A., Ahlskog J. E., Silber M. H., Tippmann-Peikert M, Boeve B. F., . REM sleep behavior disorder preceding other aspects of synucleinopathies by up to half a century. Neurology. 2010;75:494-9.

    [Google Scholar]
15. Bugalho P, da Silva J. A., Neto B, . Clinical features associated with REM sleep behavior disorder symptoms in the early stages of Parkinson’s disease. J Neurol. 2011;258:50-5.

    [Google Scholar]
16. Trotti L. M., . REM sleep behaviour disorder in older individuals: Epidemiology, pathophysiology and management. Drugs Aging. 2010;27:457-70.

    [Google Scholar]
17. Aurora R. N., Zak R. S., Maganti R. K., Auerbach S. H., Casey K. R., Chowdhuri S, et al. Standards of Practice Committee , American Academy of Sleep Medicine , . Best practice guide for the treatment of REM sleep behavior disorder (RBD) J Clin Sleep Med. 2010;6:85-95.

    [Google Scholar]
18. Anderson K. N., Shneerson J. M., . Drug treatment of REM sleep behavior disorder: The use of drug therapies other than clonazepam. J Clin Sleep Med. 2009;5:235-9.

    [Google Scholar]