Prada, F.; Santuari, D.; Legnani, F.; Del Bene, M.; Mattei, L.; Lodigiani, L.; Caputi, L.; Boffano, C.; Vailati, D. Cerebral Venous Return and High Altitude Cerebral Edema (HACE): Hypothesis and Study Protocol. Veins and Lymphatics 2013, 2, 3.