TY  - RPRT
TI  - Life graphs: aging and cohort effect.
AU  - K W Back
AU  - L B Bourque
PY  - 1970
DO  - 10.1093/geronj/25.3.249
UR  - https://pubmed.ncbi.nlm.nih.gov/4916800/
ID  - 4916800
ER  -