Interrater agreement and reliability of outcome measurement instruments and staging systems used in hidradenitis suppurativa

L Thorlacius, A Garg, P T Riis, S M Nielsen, V Bettoli, J R Ingram, V Del Marmol, L Matusiak, J C Pascual, J Revuz, K Sartorius, T Tzellos, H H van der Zee, C C Zouboulis, D M Saunte, A B Gottlieb, R Christensen, G B E Jemec