ScienceDirect (Online service), Felker, G. M., & Mann, D. L. (2020). Heart failure: A companion to Braunwald's heart disease (Fourth edition.). Elsevier.
Chicago Style (17th ed.) CitationScienceDirect (Online service), G. Michael Felker, and Douglas L. Mann. Heart Failure: A Companion to Braunwald's Heart Disease. Fourth edition. Philadelphia, PA: Elsevier, 2020.
MLA (9th ed.) CitationScienceDirect (Online service), et al. Heart Failure: A Companion to Braunwald's Heart Disease. Fourth edition. Elsevier, 2020.
Warning: These citations may not always be 100% accurate.