1. Human factors and cardiac surgery: A multicenter study
Marc R. de Leval, MDa, Jane Carthey, PhDa, David J. Wright, PhDb, Vernon T. Farewell, PhDb, James T. Reason, PhDc 
The Journal of Thoracic and Cardiovascular Surgery 
Volume 119, Issue 4, Pages (April 2000)
DOI: /S (00)
Copyright © 2000 American Association for Thoracic Surgery Terms and Conditions

2. Fig. 1 Distribution of ASOs per surgeon.
The Journal of Thoracic and Cardiovascular Surgery  , DOI: ( /S (00) )
Copyright © 2000 American Association for Thoracic Surgery Terms and Conditions

3. Fig. 2 Frequency of deaths and near misses per surgeon.
The Journal of Thoracic and Cardiovascular Surgery  , DOI: ( /S (00) )
Copyright © 2000 American Association for Thoracic Surgery Terms and Conditions