title: When pre-test probability can be deceptive.
authors.forename: Micaela
authors.initials: M
authors.lastname: La Regina
authors.forename: Maria Cristina
authors.initials: MC
authors.lastname: Pierantoni
authors.forename: Massimo
authors.initials: M
authors.lastname: Ratti
authors.forename: Francesco
authors.initials: F
authors.lastname: Orlandini
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D003937:Diagnosis, Differential; D005263:Femoral Artery / Q000000981:diagnostic imaging* / Q000293:injuries*; D005343:Fibrinolytic Agents / Q000009:adverse effects; D006406:Hematoma / Q000139:chemically induced / Q000000981:diagnostic imaging*; D006495:Heparin, Low-Molecular-Weight / Q000009:adverse effects; D006801:Humans; D008297:Male; D052097:Quadriceps Muscle / Q000000981:diagnostic imaging*; D014463:Ultrasonography; D020246:Venous Thrombosis / Q000000981:diagnostic imaging* / Q000188:drug therapy
chemical_list: D005343:Fibrinolytic Agents; D006495:Heparin, Low-Molecular-Weight