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Cláudia Vanzella, Paula Bianchetti, Sabrina Sbaraini, Samanta I Vanzin, Maria Inês S Melecchi, Elina B Caramão and Ionara R Siqueira*
* Corresponding author: Ionara R Siqueira ionara@ufrgs.br
BMC Complementary and Alternative Medicine 2012, 12:41 doi:10.1186/1472-6882-12-41