TY  - JOUR
TI  - Proportional hazards tests and diagnostics based on weighted residuals
AU  - Patricia M. Grambsch
AU  - Terry M. Therneau
JO  - Biometrika
PY  - 1994
VL  - 81
IS  - 3
DO  - 10.1093/biomet/81.3.515
UR  - https://doi.org/10.1093/biomet/81.3.515
ER  -