title: Venous Thromboembolism Guidebook, fourth edition.
authors.affiliation: Division of Cardiology and the Department of Medicine, Beth Israel Deaconess Medical Center, Boston, MA, USA.
authors.forename: Eli V
authors.initials: EV
authors.lastname: Gelfand
authors.forename: Gregory
authors.initials: G
authors.lastname: Piazza
authors.forename: Samuel Z
authors.initials: SZ
authors.lastname: Goldhaber