Tupker, R. A., Coenraads, P. J. and van der Meer, J. B. (1992) “Treatment of prurigo nodularis, chronic prurigo and neurodermatitis circumscripta with topical capsaicin”., Acta Dermato-Venereologica, 72(6), p. 463. doi: 10.2340/0001555572463.