Is Asthma-COPD overlap an asthma phenotype or a COPD phenotype?

References (1)

1. Diagnosis of Diseases of Chronic Airflow Limitation: Asthma COPD and Asthma-COPD Overlap Syndrome (ACOS) Based on the Global Strategy for Asthma Management and Prevention and the Global Strategy for the Diagnosis, Management and Prevention of Chronic Obstructive Pulmonary Disease 2014. Diagnosis of Diseases of Chronic Airflow Limitation: Asthma COPD and Asthma-COPD Overlap Syndrome (ACOS) Based on the Global Strategy for Asthma Management and Prevention and the Global Strategy for the Diagnosis, Management and Prevention of Chronic Obstructive Pulmonary Disease 2015. Global initiative for asthma. Diagnosis and initial treatment of asthma, COPD and asthma-COPD overlap (ACO) 2017. Woodruff PG, van den Berge M, Boucher RC, Brightling C, Burchard EG, Christenson SA, Han MK, Holtzman MJ, Kraft M, Lynch DA, Martinez FD, Reddel HK, Sin DD, Washko GR, Wenzel SE, Punturieri A, Freemer MM, Wise RA. ATS-NHLBI Asthma COPD Overlap (ACO) Workshop Report. Am J Respir Crit Care Med 2017 Jun 21.