Comment on

• Long-Term Effect of Endothelin Receptor Antagonism With Bosentan on the Morbidity and Mortality of Patients With Severe Chronic Heart Failure: Primary Results of the ENABLE Trials.

  Packer M, McMurray JJV, Krum H, Kiowski W, Massie BM, Caspi A, Pratt CM, Petrie MC, DeMets D, Kobrin I, Roux S, Swedberg K; ENABLE Investigators and Committees. Packer M, et al. JACC Heart Fail. 2017 May;5(5):317-326. doi: 10.1016/j.jchf.2017.02.021. JACC Heart Fail. 2017. PMID: 28449795 Review.