TY  - GEN
AU  - THOMSON,A M
TI  - The epidemiological approach to obstetric medicine
SN  - 0007-1447
PY  - 2003///0501
KW  - Female
KW  - Humans
KW  - Medicine
KW  - Mothers
KW  - statistics & numerical data
KW  - Obstetrics
KW  - Pregnancy
N1  - Publication Type: Journal Article
UR  - https://doi.org/10.1136/bmj.1.4904.19
ER  -