Hashemnia, M., Rezaei, F., Nikousefat, Z. and Bahiraei, M. 2017. Toxicological evaluation of chronic oral administration of Melissa officinalis hydro-ethanol extract in Sprague-Dawley rats. Veterinary Science Development. 7, 1 (Dec. 2017). DOI:https://doi.org/10.4081/vsd.2017.6298.