RT Journal Article SR Electronic T1 Defining end-systolic pressure for single-beat estimation of right ventricle–pulmonary artery coupling: simple… but not really JF ERJ Open Research JO erjor FD European Respiratory Society SP 00219-2021 DO 10.1183/23120541.00219-2021 VO 7 IS 3 A1 Inderjit Singh A1 Hannah Oakland A1 Ahmed Elassal A1 Paul M. Heerdt YR 2021 UL http://openres.ersjournals.com/content/7/3/00219-2021.abstract AB