title: When are you sure that you are wrong? How to exclude a pulmonary embolism.
authors.affiliation: Division of Geriatrics, Albert Einstein College of Medicine and Montefiore Medical Center, Bronx, New York 10467, USA. Lajacobs@montefiore.org
authors.forename: Laurie G
authors.initials: LG
authors.lastname: Jacobs