Coronavirus Disease 2019 (COVID‐19): Do Angiotensin‐Converting Enzyme Inhibitors/Angiotensin Receptor Blockers Have a Biphasic Effect? - Rami Sommerstein; Michael M. Kochen; Franz H. Messerli; Christoph Gräni (Journal of the American Heart Association: Cardiovascular and Cerebrovascular Disease, 2020)