TY  - GEN
AU  - Howell,R W
TI  - Letter: Methodology of sickness absence analysis
SN  - 0007-1447
PY  - 1975///0926
KW  - Absenteeism
KW  - Humans
KW  - Influenza, Human
KW  - prevention & control
KW  - Research Design
N1  - Publication Type: Journal Article
UR  - https://doi.org/10.1136/bmj.1.5957.576
ER  -