[1]
Aryala, S., Diaz-Guzmana, E. and Manninoa, D.M. 2012. Epidemiology of comorbidities in chronic obstructive pulmonary disease: clusters, phenotypes and outcomes. Italian Journal of Medicine. 6, 4 (Dec. 2012), 276–284. DOI:https://doi.org/10.4081/itjm.2012.276.