1. A Simplified Score to Quantify Comorbidity in COPD Putcha, Nirupama; Puhan, Milo A.; Drummond, M. Bradley; Han, MeiLan K.; Regan, Elizabeth A.; Hanania, Nicola A.; Martinez, Carlos H.; Foreman, Marilyn; Bhatt, Surya P.; Make, Barry; Ramsdell, Joe; DeMeo, Dawn L.; Barr, R. Graham; Rennard, Stephen I.; Martinez, Fernando; Silverman, Edwin K.; Crapo, James; Wise, Robert A.; Hansel, Nadia N. 2014 Articles Lungs--Diseases, ObstructiveDyspneaComorbidityEpidemiologyMedicine
2. Non-emphysematous chronic obstructive pulmonary disease is associated with diabetes mellitus Hersh, Craig; Make, Barry; Lynch, David; Barr, R. Graham; Bowler, Russell; Calverley, Peter; Castaldi, Peter; Cho, Michael; Coxson, Harvey; DeMeo, Dawn; Foreman, Marilyn; Han, MeiLan; Harshfield, Benjamin; Hokanson, John; Lutz, Sharon; Ramsdell, Joe; Regan, Elizabeth; Rennard, Stephen; Schroeder, Joyce; Sciurba, Frank; Steiner, Robert; Tal-Singer, Ruth; van Beek, Edwin; Silverman, Edwin; Crapo, James 2014 Articles Medicine
3. The clinical features of the overlap between COPD and asthma Hardin, Megan; Silverman, Edwin; Barr, R. Graham; Hansel, Nadia; Schroeder, Joyce; Make, Barry; Crapo, James; Hersh, Craig 2011 Articles Epidemiology