Locci-Molina, N. et al. 2014. Melasma Improving Spontaneously upon Switching from a Combined Oral Contraceptive to a Hormone-releasing Intrauterine Device: A Report of Four Cases. Acta Dermato-Venereologica. 95, 5 (Nov. 2014), 624–625. DOI:https://doi.org/10.2340/00015555-2013.