D. Gupta, Z. Chowdhary, V. Singh, and A. Bajaj, “Comparative Evaluation of Clinical Efficacy of Diode LASER and Cryosurgery for Gingival Pigmentation: A Split-Mouth Randomized Clinical Study”, Pesqui Bras Odontopediatria Clin Integr, vol. 23, p. e220144, Oct. 2023.