Analysis of Parameters Determining the Frequency and Intensity of Pneumatocele in Patients with CPA Tumor Operated in Sitting Position with Total Intravenous Anesthesia - Kwiek, Stanislaw J; Doleżych, Hanna; Ślusarczyk, Wojciech; Bażowski, Piotr; Duda, Izabela; Kukier, Wojciech (Skull Base, 2007)