Long COVID Patients with Orthostatic Intolerance Have Reduced Heart Variability and Preserved Physiological Response to Active StandingPor J Antonio Gonzalez Hermosillo, Claudia Lerma, Dulce Andrea Celestino Montelongo, Maria Del Carmen Alba Lorenzo, Emiliana Salas Santos, Atziri Gun Cuninghame Ballesteros, Esteban Jorge Galarza and Maria del Rocio Martinez Alvarado Skip to PDF content