5Headache Classification Subcommittee of the International Headache Society. The International Classification of Headache Disorders: 2nd edition. Cephalalgia, 2004, 24(Suppl 1) : 9-160.
6Cady RK, Dodick DW, Levine HL, et al. Sinus headache: a neurology, otolaryngology, allergy, and primary care consensus on diagnosis and treatment. Mayo Clin Proc, 2005,80(7) : 908-916.
7Cady RK, Schreiber CP. Sinus headache or migraine? Considerations in making a differential diagnosis. Neurology, 2002, 58(9 Suppl 6): S10-14.
8Uddman R, Maim L, Sundler F. Substance-P-containing nerve fibers in the nasal mucosa. Arch Otorhinolaryngol, 1983, 238( 1):9-16.
9Stammberger H, Wolf G. Headaches and sinus disease: the endoscopic approach. Ann Otol Rhinol Laryngol Suppl, 1988, 134(5) : 3-23.
