TY  - RPRT
TI  - Second trimester folate status and preterm birth.
AU  - Anna Maria Siega-Riz
AU  - David A Savitz
AU  - Steven H Zeisel
AU  - John M Thorp
AU  - Amy Herring
PY  - 2004
DO  - 10.1016/j.ajog.2004.07.076
UR  - https://pubmed.ncbi.nlm.nih.gov/15592264/
ID  - 15592264
ER  -