Griffiths, M. R. and Priestley, G. C. (1992) “A comparison of morphoea and lichen sclerosus et atrophicus in vitro: the effects of para-aminobenzoate on skin fibroblasts”., Acta Dermato-Venereologica, 72(1), pp. 15–18. doi: 10.2340/00015555721518.