SINULINGGA, RIKA TANIA NARULITA, et al. “PROBIOTIC LACTOBACILLUS REUTERI EFFECT’S ON THE LEVELS OF INTERLEUKIN-4 IN PERIODONTITIS PATIENTS AFTER SCALING AND ROOT PLANING”. International Journal of Applied Pharmaceutics, vol. 12, no. 2, July 2020, pp. 64-68, doi:10.22159/ijap.2020.v12s2.PP-20.