1. Oxford English Dictionary.
2. The quality of care. How can it be assessed?;Donabedian;J Am Med Assoc,1988
3. Commentary on some studies on the quality of care;Donabedian;Health Care Financ Rev,1987
4. To err is human: building a safer health system,2000
5. Patient safety incident reporting: a qualitative study of thoughts and perceptions of experts 15 years after ‘To Err is Human’;Mitchell;BMJ Qual Saf,2016