Stein Gold, L., Gooderham, M., Papp, K., Ferris, L., Lebwohl, M., Adam, D., Alonso-Llamazares, J. ., Hong, C.- ho, Kempers, S., Kircik, L. ., Jing Loo, W., Stewart, D., Nahm, W., Zirwas, M., Burnett, P., Higham, R., Navale, L. and Berk, D. (2021) “Long-term Safety and Efficacy of Roflumilast Cream 0.3% in Adult Patients With Chronic Plaque Psoriasis: Results From a 52-Week, Phase 2b Open-Label Study”, SKIN The Journal of Cutaneous Medicine, 5(6), p. s44. doi: 10.25251/skin.5.supp.44.