A New Headache during Late Pregnancy: Consider the Nasal Mucosa as a Point" of Reference
JNNP 85:112-113, Rozen, T.D., 2014
Neurological Complications With Acute Sphenoid Sinusitis a Surgical Emergency?
Neurocrit Care 7:169-171, Poulopoulos,M. &Finelli,P.F., 2007