TY  - RPRT
TI  - Shifting age-parity distribution of births and the decrease in infant mortality.
AU  - N M Morris
AU  - J R Udry
AU  - C L Chase
PY  - 1975
DO  - 10.2105/ajph.65.4.359
UR  - https://pubmed.ncbi.nlm.nih.gov/1119632/
ID  - 1119632
ER  -