German Society of Otorhinolaryngology, Head and Neck SurgeryHNO - Stuck, B A; Bachert, C; Federspil, P; Hosemann, W; Klimek , L; Mösges, R; Pfaar, O; Rudack, C; Sitter, H; Wagenmann, M; Weber, R; Hörmann, K (2011)
Rhinosinusitis guidelines-unabridged version: S2 guidelines from the German Society of Otorhinolaryngology, Head and Neck Surgery.