Tzilas, Vasilios Cardiopulmonary Exercise Testing in Systemic Sclerosis: 'Ars longa, vita brevis'. [electronic resource] - Respiration; international review of thoracic diseases 2016 - 202-3 p. digital Publication Type: Editorial; Comment ISSN: 1423-0356 Standard No.: 10.1159/000444091 doi Subjects--Topical Terms: Exercise TestHumansScleroderma, Systemic