TY  - RPRT
TI  - Measuring subjective outcomes: rethinking reliability and validity.
AU  - T A Elasy
AU  - G Gaddy
PY  - 1998
DO  - 10.1046/j.1525-1497.1998.00228.x
UR  - https://pubmed.ncbi.nlm.nih.gov/9824522/
ID  - 9824522
ER  -