TY  - RPRT
TI  - How much does parity matter?
AU  - Linda J Heffner
PY  - 2005
DO  - 10.1097/01.aog.0000177661.89742.9f
UR  - https://pubmed.ncbi.nlm.nih.gov/16135571/
ID  - 16135571
ER  -