Dreno, B, P Amblard, P Agache, S Sirot, and P Litoux. “Low Doses of Zinc Gluconate for Inflammatory Acne”. Acta Dermato-Venereologica 69, no. 6 (November 17, 1989): 541–543. Accessed July 18, 2026. https://medicaljournalssweden.se/actadv/article/view/4742.