TY  - RPRT
TI  - Maternal age and birth defects: a population study.
AU  - P A Baird
AU  - A D Sadovnick
AU  - I M Yee
PY  - 1991
DO  - 10.1016/0140-6736(91)91306-f
UR  - https://pubmed.ncbi.nlm.nih.gov/1671898/
ID  - 1671898
ER  -