There is a growing amount of evidence-based research supporting various botanicals; and/or primary evidence comes from a long medicinal use. Evidence-based research may be limited, but we shouldn't ignore botanicals that have been used for 1000s of years,
M. Eccles, N. Rousseau, and N. Freemantle. Journal of health services research & policy, 7 (2):
98-103(April 2002)LR: 20041117; PUBM: Print; JID: 9604936; ppublish.
S. Corrao, D. Colomba, S. Arnone, C. Argano, T. Chiara, R. Scaglione, and G. Licata. Journal of the American Medical Informatics Association : JAMIA, 13 (5):
485-487(September 2006)LR: 20070419; PUBM: Print-Electronic; DEP: 20060623; JID: 9430800; CIN: J Am Med Inform Assoc. 2007 Mar-Apr;14(2):247-8. PMID: 17213490; 2006/06/23 aheadofprint; ppublish.
D. Altman, K. Schulz, D. Moher, M. Egger, F. Davidoff, D. Elbourne, P. Gotzsche, T. Lang, and C. of Reporting Trials). Annals of Internal Medicine, 134 (8):
663-694(April 2001)LR: 20061115; PUBM: Print; JID: 0372351; CIN: Ann Intern Med. 2002 Jun 18;136(12):926-7; author reply 926-7. PMID: 12069567; CIN: Ann Intern Med. 2002 Jun 18;136(12):926-7; author reply 926-7. PMID: 12069568; CIN: Med Clin (Barc). 2005 Mar 26;124(11):439. PMID: 15799859; RF: 204; ppublish.