TY  - JOUR
T1  - BIrth labor
Y1  - 2002/09/18
N1  - 10.1001/jama.288.11.1432
JO  - JAMA
SP  - 1432
EP  - 1432
VL  - 288
IS  - 11
N2  - 
http://www.ama-assn.org/public/journals/patient/archive/jpg091802.htm

SN  - 0098-7484
M3  - doi: 10.1001/jama.288.11.1432
UR  - http://dx.doi.org/10.1001/jama.288.11.1432
ER  -