“A Comparative Analysis of in-Office Vital 6% Hydrogen Peroxide Activated Charcoal Tooth Whitening Treatment Enhanced With an 810nm Diode Laser, Compared to 35% Hydrogen Peroxide Bleaching”. South African Dental Journal, vol. 76, no. 2, Mar. 2021, pp. 64-71, https://doi.org/10.17159/2519-0105/2021/v76no2a1.