Wasfy JH, Strom JB, Waldo SW, O'Brien C, Wimmer NJ, Zai AH, Luttrell J, Spertus JA, Kennedy KF, Normand SL, Mauri L, Yeh RW. Clinical preventability of 30-day readmission after percutaneous coronary intervention. J Am Heart Assoc. 2014 Sep 26; 3(5):e001290.