S. Karvonen, L. Räsänen, E. Soppi, H. Hyöty, M. Lehtinen, and T. Reunala, “Increased chemiluminescence of whole blood and normal T-lymphocyte subsets in severe nodular acne and acne fulminans”., Acta Derm Venereol, vol. 75, no. 1, pp. 1–5, Jan. 1995.