Outcomes of percutaneous coronary intervention in intermediate coronary artery disease: fractional flow reserve-guided versus intravascular ultrasound-guided.
Nam CW, Yoon HJ, Cho YK, Park HS, Kim H, Hur SH, Kim YN, Chung IS, Koo BK, Tahk SJ, et al. JACC Cardiovasc Interv. 2010 Aug; 3(8):812-7.