Nonsegmental vitiligo disease duration and female sex are associated with comorbidity and disease extent: a retrospective analysis in 1307 patients aged ≥ 50 years. (3rd August 2016) - Teulings, H.E.; Ceylan, E.; Overkamp, M.; Vrijman, C.; Bos, J.D.; Nijsten, T.E.; Wolkerstorfer, A.; Luiten, R.M.; van der Veen, J.P.W.