Novel Approach to Avoid Manipulation of the Medial Pterygopalatine Fossa Contents during Surgical Management of Sphenoid Sinus Lateral Recess Cerebrospinal Fluid Leaks: The Posterior Maxillary Sinus Window Technique - Ospina, Javier; Janjua, Arif (Journal of Neurological Surgery Part B: Skull Base, 2018)