Roberts, Melissa H., Mapel, Douglas W., Bruse, Shannon, Petersen, Hans, Nyunoya, Toru (2013). "Development of a modified BODE index as a risk measure among older adults with and without chronic obstructive pulmonary disease". American Journal of Epidemiology, Vol.178, No.7, Oct. 1, 2013: p.1150-1160
DOI: https://doi.org/10.1093/aje/kwt087