“Side Effects of Objective Methods and Subjective Methods from the Efficacy of Intense Pulsed Light Versus Benzoyl Peroxide 2.5% Gel in Treatment of Mild to Moderate Facial Acne Vulgaris in Iraqi Patients”. 2021. Journal of Pharmaceutical Negative Results 12 (2): 29-31. https://www.pnrjournal.com/index.php/home/article/view/176.