Restless legs syndrome is associated with major comorbidities in a population of Danish blood donors. - Didriksen M; Allen RP; Burchell BJ; Thørner LW; Rigas AS; Di Angelantonio E; Nielsen MH; Jennum PJ; Werge T; Erikstrup C; Pedersen OB; Nielsen K; et al. (Sleep medicine, 2018)