Diagnostic Spirometry in Primary Care: Proposed standards for general practice compliant with American Thoracic Society and European Respiratory Society recommendations. A General Practice Airways Group (GPIAG)1 document, in association with the Association for Respiratory Technology & Physiology (ARTP)2 and Education for Health3 1www.gpiag.org 2 www.artp.org 3 www.educationforhealth.org.uk
Distribution of the number of citations over years.