Clinical practice guideline: adult sinusitis - Rosenfeld, R M; Andes, D; Bhattacharyya, N; Cheung, D; Eisenberg, S; Ganiats, T G; Gelzer, A; Hamilos, D; Haydon, R C, 3rd; Hudgins, P A; Jones, S; Krouse, H J; Lee, L H; Mahoney, M C; Marple, B F; Mitchell, C J; Nathan, R; Shiffman, R N; Smith, T L; Witsell, D L (Otolaryngol Head Neck Surg, 2007)