RT Journal Article SR Electronic T1 Rising COVID-19 related acute pulmonary emboli but falling national chronic thromboembolic pulmonary hypertension referrals from a large national dataset JF ERJ Open Research JO erjor FD European Respiratory Society SP 00431-2021 DO 10.1183/23120541.00431-2021 VO 7 IS 4 A1 Joseph Newman A1 Iryna Boubriak A1 David Jenkins A1 Choo Ng A1 Alessandro Ruggiero A1 Nicholas Screaton A1 John Cannon A1 Mark Toshner YR 2021 UL http://openres.ersjournals.com/content/7/4/00431-2021.abstract AB