TY  - GEN
AU  - Uphoff,D E
TI  - Fact versus supposition
SN  - 0036-8075
PY  - 1987///0112
KW  - Quality Control
KW  - Research
KW  - standards
N1  - Publication Type: Letter
UR  - https://doi.org/10.1126/science.3787254
ER  -