Feldman SR, Han G, Callender V, Kircik L, Stein Gold L, Bhatia N, Tyring SK, Zeichner J. Benefit of Topical Combination Therapy for Acne Treatment: Analysis of Effect Size Using Number Needed to Treat. J of Skin [Internet]. 2022Nov.16 [cited 2024Jul.22];6(6):s86. Available from: https://jofskin.org/index.php/skin/article/view/1844