Sphenoid Sinusitis
NEJM 309:1149-1154, Lew,D.,et al, 1983
Cervical Plexus, Handbook of Clinical of Neurology
Ed. Vinken & Bruyn 2:13469., Feringa,E.R., 1969
Nervus Intermedius (Hunt's) Neuralgia
Wegner, W. Chap 32 & Clinical Record Handbook of Clinical Neurology, p. 337 Vinken & Bryon, , 1968