TY  - GEN
AU  - Thomas,David A
TI  - Chi-square analysis
SN  - 0304-3959
PY  - 1990///0620
KW  - Chi-Square Distribution
KW  - Humans
KW  - Pain
KW  - epidemiology
N1  - Publication Type: Letter
UR  - https://doi.org/10.1016/0304-3959(90)91059-R
ER  -