An Investigation into the Use of an Herbal Labor Induction Tincture Containing Black Cohosh, Cramp Bark, Partridgeberry, and Motherwort on Contractile Responses Produced from Isolated Strips of Mouse Uterine Tissues, Neuenschwander, Clayton, Wu Katrina, and DeGolier Teresa , Pharmacognosy Journal, November 2021, Volume 13, Issue 6, p.1478-1487, (2021)