The definition and management of segmental pulmonary hypertension - Dimopoulos,K; Diller,GP; Opotowsky,AR; D'Alto,M; Gu,H; Giannakoulas,G; Budts,W; Broberg,CS; Veldtman,G; Swan,L; Beghetti,M; Gatzoulis,MA (Journal of the American Heart Association : Cardiovascular and Cerebrovascular Disease, 2018)