1. National Center for Complementary and Integrative Health. The Use of Complementary and Alternative Medicine in the United States. https://nccih.nih.gov/research/statistics/2007/camsurvey_fs1.htm . Accessed April 19, 2018.Expert Rev Neurother.  2011;11:15-27.Drugs Aging.  1995;7:317-328.Cochrane Database Syst Rev.  2013;(2):CD007393.BMJ . 2004;328:991.Clin Ther.  1991; 13:383.J Rheumatol . 1992;19:604.Rheumatology (Oxford).  2011;50:911-920. Cochrane Database Syst Rev.  2013;(5): CD010538.Cochrane Database Syst Rev.  2014;(12): CD004504. Curr Med Res Opin.  2011;27:939-950.Pain . 2013;154:1632-1639.Headache . 2011;51:469-483.Neurol Sci.  2014;35(suppl 1):135-140.Eur Neurol.  2004;51:89-97.Neurology . 2004;63:2240-2244.Headache . 2005;45:196-203.Neurology . 2012;78:1346-1353.http://n.neurology.org/content/78/17/1346 . Accessed April 29, 2018. Curr Opin Otolaryngol Head Neck Surg.  2009;17:226-231.Ann Allergy Asthma Immunol.  2007;99:483-495.Curr Treat Options Neurol.  2016; 18:14. Chin Med.  2010;6:13.Life Sci . 2007;81:519-533.Phytomedicine . 2011;18:691-696. Psychopharmacology (Berl).  2014;231: 3879-3888.Am J Geriatr Psychiatry.  2016;24: 881-889.Nutr Res . 2016;36:220-226.J Am Diet Assoc . 2011; 111:1720-1729.Eur J Epidemiol.  2015;30:103-113. Prev Med.  1997;26:769-775.Am J Clin Nutr.  2013;98(6 suppl): 1676S-1681S.Am J Epidemiol.  2008;167:71-77.Ann Intern Med.  2006; 144:554-562.. Diab Metab J.  2013;37:173-175.BMJ Open.  2014;4:e005632.Am J Clin Nutr.  2013;98:340-348.Eur J Clin Nutr.  2016;70:1340.Clin Med (Lond).  2007;7:224-227.Curr Pharm Biotechnol.  2011;12:68-77. Am J Gastroenterol.  2014;109(suppl 1):S2-S26.Cochrane Database Syst Rev.  2011;(8):CD003460.J Clin Gastroenterol.  2014;48:505-512.Dig Dis Sci.  2016;61:560-571.Phytomedicin e. 2003;10(suppl 4):56-57.Arzneimittelforschung . 1999;49:925-932. Clin Radiol.  2003;58:301-305.Br J Radiol.  1995;68:841-843.Iran J Pharm Res.  2012;11:1073-1077.Front Neurol . 2015;6:11.Int J Clin Pract.  2010; 64:451-456.Nervenarzt . 1996;67:672-681.Aust Fam Physician.  1996;25:216-220.Int J Sports Phys Ther.  2012;7:314-322.J Geriatr Phys Ther.  2013;36:92-99. Rehabil Res Pract.  2014;2014:310913. Int J Toxicol.  2001;20(suppl 3):61-73.Am Fam Physician . 2007;75:1027-1030.Indian J Anaesth.  2012;56:582-584.