TY  - BOOK
AU  - Kupper L L
AU  - McMichael A J
AU  - Symons M J
TI  - On the utility of proportional mortality analysis
U1  - 000SB:614.4 
PY  - 1975///
CY  - Chapel hill
PB  - North carolina Univ
KW  - Proportional mortality
ER  -