title: Prospective Cohort Studies.
authors.affiliation: Vascular and Endovascular Unit, Hospital S. Maria Misericordia, Loc. S. Andrea delle Fratte, 06134 Perugia, Italy. Electronic address: plderango@gmail.com.
authors.forename: P
authors.initials: P
authors.lastname: De Rango
mesh_terms: D006801:Humans; D064887:Observational Studies as Topic / Q000379:methods* / Q000592:standards; D011446:Prospective Studies; D012107:Research Design / Q000592:standards; D013997:Time Factors