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. Author manuscript; available in PMC: 2021 Jan 1.
Published in final edited form as: J Heart Lung Transplant. 2019 Aug 10;39(1):45–52. doi: 10.1016/j.healun.2019.07.007

Figure 1. Timing of endothelin-1 measurement.

Figure 1.

If endothelin-1 is associated with heart failure, there are fewer possible explanations if endothelin-1 is measured before the development of disease in a prospective cohort design.