Simpson, A. N., Bonilha, H. S., Kazley, A. S., Zoller, J. S., & Ellis, C. (2013). Marginal costing methods highlight the contributing cost of comorbid conditions in Medicare patients: A quasi-experimental case–control study of ischemic stroke costs. BioMed Central.

Simpson, Annie N., Heather S. Bonilha, Abby S. Kazley, James S. Zoller, and Charles Ellis. Marginal Costing Methods Highlight the Contributing Cost of Comorbid Conditions in Medicare Patients: A Quasi-experimental Case–control Study of Ischemic Stroke Costs. BioMed Central, 2013.

Simpson, Annie N., et al. Marginal Costing Methods Highlight the Contributing Cost of Comorbid Conditions in Medicare Patients: A Quasi-experimental Case–control Study of Ischemic Stroke Costs. BioMed Central, 2013.