TY  - RPRT
TI  - A simple method for estimating age-specific rates from sequential cross sections.
AU  - Carl P Schmertmann
PY  - 2002
DO  - 10.1353/dem.2002.0018
UR  - https://pubmed.ncbi.nlm.nih.gov/12048953/
ID  - 12048953
ER  -