Gold, MR; Stevenson, D; Fryback, DG (2002). «HALYS and QALYS and DALYS, oh my: similarities and differences in summary measures of population health». Annual Review of Public Health23: 115-34. PMID11910057. doi:10.1146/annurev.publhealth.23.100901.140513.
Gold, MR; Stevenson, D; Fryback, DG (2002). «HALYS and QALYS and DALYS, oh my: similarities and differences in summary measures of population health». Annual Review of Public Health23: 115-34. PMID11910057. doi:10.1146/annurev.publhealth.23.100901.140513.