Elsevier, Mayo Clinic Proceedings, 7(84), p. 586-592
DOI: 10.4065/84.7.586
Elsevier, Mayo Clinic Proceedings, 7(84), p. 586-592
DOI: 10.1016/s0025-6196(11)60747-7
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OBJECTIVE: To assess interrater reliability of the New York Heart Association/World Health Organization functional classification as applied by clinicians (defined as both physicians and nurses in this article) to patients with pulmonary arterial hypertension (PAH).