“Safety and Tolerability of Fixed Combination Halobetasol Propionate 0.01% and Tazarotene 0.045% (HP TAZ) Lotion in Patients With Moderate-to-Severe Plaque Psoriasis: Results From a 1-Year, Open-Label Study”. SKIN The Journal of Cutaneous Medicine, vol. 4, no. 5, Sept. 2020, p. s38, https://doi.org/10.25251/skin.4.supp.38.