Impact of the COVID‐19 pandemic on chronic disease management and patient reported outcomes in patients with pulmonary hypertension: The Pulmonary Hypertension Association Registry... oleh Megan Mayer, David B. Badesch, Kelly H. Nielsen, Steven Kawut, Todd Bull, John J. Ryan, Jeffrey Sager, Sula Mazimba, Anna Hemnes, James Klinger, James Runo, John W. McConnell, Teresa De Marco, Murali M. Chakinala, Delphine Yung, Jean Elwing, Adolfo Kaplan, Rahul Argula, Raymond Pomponio, Ryan Peterson, Peter Hountras