Comparison of functional recovery following percutaneous coronary intervention for ST elevation myocardial infarction in three age groups (<70, 70 to 79, and ≥80 years). - Christiansen EC; Wickstrom KK; Henry TD; Garberich RF; Rutten-Ramos SC; Larson DM; Grey EZ; Thiessen NL; Hauser RG; Newell MC (The American journal of cardiology, 2013)