TY  - JOUR
TI  - Tests for Linear Trends in Proportions and Frequencies
AU  - P. Armitage
JO  - Biometrics
PY  - 1955
VL  - 11
IS  - 3
DO  - 10.2307/3001775
UR  - https://doi.org/10.2307/3001775
ER  -