Cytotoxicity of Lactobacillus plantarum KK518 Isolated from Pak-Sian Dong (Thai Fermented Gynandropsis pentaphylla DC.) Against HepG2, MCF-7 and HeLa Cancer Cells, Luang-In, Vijitra, Saengha Worachot, Buranrat Benjaporn, Nudmamud-Thanoi Sutisa, Narbad Arjan, Pumriw Supaporn, and Samappito Wannee , Pharmacognosy Journal, August 2020, Volume 12, Issue 5, p.1050-1057, (2020)