Ferahta, N.; Kanagaratnam, L. K.; Dramé, M.; Vogel, T.; Ambrosi, P.-J.; Lang, P.-O. Bleeding Risk under Oral Factor Xa Inhibitors: Meta-Analysis of the Randomized Comparison With Vitamin K Antagonists and Meta-Regression Analysis. J Cardiovasc Med Cardiol 2017, 4, 038-048.