Wattanakrai, P., S. Suwanachote, and K. Tantipisitkul. “Effectiveness of combination of nonablative radiofrequency and topical drugs for acne treatment”. Thai Journal of Dermatology, vol. 23, no. 3, July 2026, pp. 152-64, https://he02.tci-thaijo.org/index.php/TJD/article/view/283415.