TY  - GEN
AU  - Velez Edwards,D R
AU  - Baird,D D
AU  - Hasan,R
AU  - Savitz,D A
AU  - Hartmann,K E
TI  - First-trimester bleeding characteristics associate with increased risk of preterm birth: data from a prospective pregnancy cohort
SN  - 1460-2350
PY  - 2012///0413
KW  - Adolescent
KW  - Adult
KW  - Cohort Studies
KW  - Female
KW  - Hemorrhage
KW  - Humans
KW  - Odds Ratio
KW  - Pregnancy
KW  - Pregnancy Trimester, First
KW  - Premature Birth
KW  - etiology
KW  - Prospective Studies
KW  - Regression Analysis
KW  - Risk
KW  - Ultrasonography, Prenatal
N1  - Publication Type: Journal Article; Research Support, N.I.H., Extramural; Research Support, Non-U.S. Gov't
UR  - https://doi.org/10.1093/humrep/der354
ER  -