Review Lemon balm (Melissa officinalis L.): an evidence-based systematic review by the Natural Standard Research Collaboration.
Ulbricht C, Brendler T, Gruenwald J, Kligler B, Keifer D, Abrams TR, Woods J, Boon H, Kirkwood CD, Hackman DA, et al. J Herb Pharmacother. 2005; 5(4):71-114.