TY  - JOUR
A1  - Gribble, J.N.
T1  - Birth intervals, gestational age, and low birth weight: Are the relationships confounded?
Y1  - 1993
DO  - 10.1080/0032472031000146776
JF  - Population Studies
VL  - 47
IS  - 2
SP  - 133
EP  - -146

ER  -