Shabana Saeed and Samina Bano 2014. Improved Serotonergic Tone Contributes to the Mechanism of Action of St John’s Wort in Nicotine Withdrawn Mice. Journal of Pharmacy and Nutrition Sciences . 4, 4 (Aug. 2014), 255–262. DOI:https://doi.org/10.6000/1927-5951.2014.04.04.4.