title: Shades of gray.
authors: University of Iowa Hospitals and Clinics, Iowa City, IA 52242, USA. dipti-gupta@uiowa.edu
authors: Dipti
authors: D
authors: Gupta
mesh_terms: D000368:Aged; D000739:Anecdotes as Topic; D001024:Aortic Valve Stenosis / Q000175:diagnosis* / Q000601:surgery; D003422:Critical Care; D004452:Echocardiography; D019317:Evidence-Based Medicine; D005260:Female; D006801:Humans; D007362:Intensive Care Units; D007484:Iowa; D008297:Male; D016896:Treatment Outcome