Wipavakul, Sirinee, Kowit Kampirapap, Sutthirat Reangchainam, Butsayamas Numklun, and Prakaidow Chaichopha. 2015. “A comparison of the clinical efficacy of topical acne lotion and 2.5%benzoyl peroxide versus topical acne lotion and 2%erythromycin solution in the treatment of mild to moderate back acne”. Thai Journal of Dermatology 31 (3):145-57. https://he02.tci-thaijo.org/index.php/TJD/article/view/282585.