Emergency department sonography by emergency physicians.
Kellermann
A L
AL
Holley
J
J
D004636:Emergency Service, Hospital; D005260:Female; D005705:Gallbladder Diseases / Q000000981:diagnostic imaging; D006801:Humans; D011237:Predictive Value of Tests; D011247:Pregnancy; D011271:Pregnancy, Ectopic / Q000000981:diagnostic imaging; D012189:Retrospective Studies; D014463:Ultrasonography / Q000379:methods*