“…In addition, one of the studies collected blood from two different locations from the same patients (vein and coronary sinus); 24% of studies used TaqMan assay to measure expression levels of miRNAs; 42% and 29% of studies were conducted in China and Europe between 2010 and 2021, respectively ( Table 1 and online supplementary Table Appendix S1 ). 22 , 23 , 24 , 25 , 26 , 27 , 28 , 29 , 30 , 31 , 32 , 33 , 34 , 35 , 36 , 37 , 38 , 39 , 40 , 41 , 42 , 43 , 44 , 45 , 46 , 47 , 48 , 49 , 50 , 51 , 52 , 53 , 54 , 55 , 56 , 57 , 58 , 59 , 60 , 61 , 62 , 63 , 64 , 65 , 66 …”