Prevalence of patients with self‐reported hidradenitis suppurativa in a cohort of Danish blood donors: a cross‐sectional study

P. Theut Riis, O.B. Pedersen, V. Sigsgaard, C Erikstrup, H M Paarup, K.R. Nielsen, K.S. Burgdorf, H Hjalgrim, K. Rostgaard, K. Banasik, H. Ullum, G.B. Jemec