TY  - RPRT
TI  - Futility: is definition the problem? Part I.
AU  - M P Cotler
AU  - D R Gregory
PY  - 1993
DO  - 10.1017/s096318010000092x
UR  - https://pubmed.ncbi.nlm.nih.gov/8293211/
ID  - 8293211
ER  -