Horváth, B.; Janse, I. C.; Blok, J. L.; Driessen, R. J.; Boer, J.; Mekkes, J. R.; Prens, E. P.; van der Zee, H. H. Hurley Staging Refined: A Proposal by the Dutch Hidradenitis Suppurativa Expert Group. Acta Derm Venereol 2016, 97, 412-413.