TY  - JOUR
T1  - CHildbirth history
Y1  - 1999/10/13
N1  - 10.1001/jama.282.14.1382
JO  - JAMA
SP  - 1382
EP  - 1382
VL  - 282
IS  - 14
N2  - 
SN  - 0098-7484
M3  - doi: 10.1001/jama.282.14.1382
UR  - http://dx.doi.org/10.1001/jama.282.14.1382
ER  -