A randomized, open-label, multicenter trial for the safety and efficacy of adult mesenchymal stem cells after acute myocardial infarction - Lee, J W; Lee, S H; Youn, Y J; Ahn, M S; Kim, J Y; Yoo, B S; Yoon, J; Kwon, W; Hong, I S; Lee, K; Kwan, J; Park, K S; Choi, D; Jang, Y S; Hong, M K (J Korean Med Sci, 2014)