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Table 2 Quality of articles assessed using a framework for assessing internal validity [26]

From: Depression as a predictor of work resumption following myocardial infarction (MI): a review of recent research evidence

Author High 12 or more Moderate 10-11 Low 9 or less
Bhattacharyya (2007) [14]   
Brink (2008) [30]   
Fukuoka (2009) [28]   
Engblom (1994) [27]   
Ladwig (1994) [34]   
Mayou (2000) [9]    
McGee (2006) [35]   
Mittag (2001) [33]    
Soderman (2003) [5]    
Soejima (1999) [31]   
Sykes (2000) [32]    
Samkange-Zeeb (2006) [29]