Erratum to: Bias in protein and potassium intake collected with 24-h recalls (EPIC-Soft) is rather comparable across European populations - Crispim, S; Geelen, A; de Vries, J; Souverein, O; Hulshof, P; Boshuizen, H; van't Veer, P; Freisling, H; Huybrechts, I; Slimani, N; Ocke, M; Bueno-de-Mesquita, H; et al. (2012)