Hagforsen, E., Mustafa, A., Lefvert, A.-K., Nordlind, K., & Michaëlsson, G. (2002). Palmoplantar pustulosis: an autoimmune disease precipitated by smoking?. Acta Dermato-Venereologica, 82(5), 341–346. https://doi.org/10.1080/000155502320624069