1. Evolutionary imperatives, quiet revolutions: Changing working conditions and supervision of house officers;Bell;The Pharos,1989
2. Residents’ hours and supervision;Petersdorf;Acad Med,1989
3. Flexner Report – 100 years later;Duffy;Yale J Biol Med,2011
4. Supervision and residents’ working conditions,1987
5. Compounding the error;Levinsky;N Engl J Med,1988