(1)
Ismiyatin, K.; Subiyanto, A.; Tangdan, I.; Nawawi, R.; Lina, R. C.; Ernawati, R.; Kurniawan, H. J. The Effects of Different 650 Nm Laser Diode Irradiation Times on the Viability and Proliferation of Human Periodontal Ligament Fibroblast Cells. Dent. J. 2019, 52, 142-146.