Giant intracranial aneurysms: morphology and clinical presentation - Santos, Marcio L. Tostes dos; Spotti, Antonio Ronaldo; Santos, Rosangela M. Tostes dos; Borges, Moacir Alves; Ferrari, Antonio Fernandes; Colli, Benedicto Oscar; Tognola, Waldir Antônio (Neurosurgical Review, 2013)