@misc{9931,
  author = {S. Hennessy and W. Bilker and C. Leonard and J. Chittams and C. Palumbo and J. Karlawish and Y. Yang and E. Lautenbach and W. Baine and J. Metlay},
  title = {Observed association between antidepressant use and pneumonia risk was confounded by comorbidity measures},
  year = {2007},
  journal = {J Clin Epidemiol},
  volume = {60},
  number = {9},
  pages = {911-8},
  issn = {0895-4356 (Print) 0895-4356},
  doi = {10.1016/j.jclinepi.2006.11.022},
}