TY  - RPRT
TI  - Problems extracting data from hospital maternity records.
AU  - A Cartwright
AU  - A Jacoby
AU  - C Martin
PY  - 1987
DO  - 10.1093/oxfordjournals.pubmed.a043940
UR  - https://pubmed.ncbi.nlm.nih.gov/3665410/
ID  - 3665410
ER  -