Inhibitory Effects on Oral Microbial Activity and Production of Lipopolysaccharides-Induced Pro-Inflammatory Mediators in Raw264.7 Macrophages of Ethanol Extract of Perilla flutesc... by Moon-Jin Jeong, Do-Seon Lim, Myoung-Hwa Lee, Kyungwon Heo, Han-Hong Kim, Soon-Jeong Jeong