TY  - JOUR
PY  - 1958//
TI  - PRELIMINARY guide for measuring work absence due to illness and injury
JO  - Journal of the American Medical Association
SP  - 1230
EP  - 1232
VL  - 168
IS  - 9
N2  - <p>[Abstract unavailable]</p> <p>Language: en</p> 
LA  - en
SN  - 0002-9955
UR  - http://dx.doi.org/
ID  - ref1
ER  -