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Journal of General Internal Medicine > 2007 > 22 > 1 > 43-48
Seminars in Thoracic and Cardiovascular Surgery > 2004 > 16 > 3 > 283-292
Journal of General Internal Medicine > 2001 > 16 > 8 > 531-537
Journal of General Internal Medicine > 2007 > 22 > 1 > 43-48
Seminars in Thoracic and Cardiovascular Surgery > 2004 > 16 > 3 > 283-292
Journal of General Internal Medicine > 2001 > 16 > 8 > 531-537