Microscopic versus endoscopic transsphenoidal surgery for pituitary adenoma: analysis of surgical safety in 221 consecutive patients. (4th March 2016) - Levi, V.; Bertani, G.A.; Guastella, C.; Pignataro, L.; Zavanone, M.L.P.F.; Rampini, P.M.; Caroli, M.A.R.; Sala, E.; Malchiodi, E.; Mantovani, G.; Carrabba, G.G.; Locatelli, M.