References
- Baron SJ, Wang K, House JA, et al. Cost-effectiveness of transcatheter vs. surgical aortic valve replacement in patients with severe aortic stenosis at intermediate risk: results from the PARTNER 2 trial. Circulation. 2018;139(7):877–888.
- Charlson ME, Pompei P, Ales KL, et al. A new method of classifying prognostic comorbidity in longitudinal studies: development and validation. J Chronic Dis. 1987;40:373–383.
- Elixhauser A, Steiner C, Harris DR, et al. Comorbidity measures for use with administrative data. Med Care. 1998;36:8–27.