Schwab P, Dhamane AD, Hopson SD, Moretz C, Annavarapu S, Burslem K, Renda A, Kaila S. Impact of comorbid conditions in COPD patients on health care resource utilization and costs in a predominantly Medicare population. Int J Chron Obstruct Pulmon Dis. 2017 Feb 23;12:735-44. doi: 10.2147/COPD.S112256
Dhamane AD, Schwab P, Hopson S, Moretz C, Annavarapu S, Burslem K, Renda A, Kaila S. Association between adherence to medications for COPD and medications for other chronic conditions in COPD patients. Int J Chron Obstruct Pulmon Dis. 2016 Dec 22;12:115-22. doi: 10.2147/COPD.S114802
Burch SP, Davis KH, Fehnel SE, Nelsen AC, Hill CD, Shashidhar KH. Outcomes, impact and behavior associated with acute treatment of migraine. Poster presented at the 16th Migraine Trust International Symposium; November 2006. [abstract] Cephalalgia. 2006 Nov; 26(11):1358-403.