title: Increased ratio of vascular endothelial growth factor to semaphorin3A is a negative prognostic factor in human meningiomas.
authors.affiliation: Department of Human Pathology, University of Messina, Messina, Italy.
authors.forename: Valeria
authors.initials: V
authors.lastname: Barresi
authors.affiliation: Department of Human Pathology, University of Messina, Messina, Italy.
authors.forename: Giovanni
authors.initials: G
authors.lastname: Tuccari