TY  - GEN
AU  - Heath,V C
AU  - Southall,T R
AU  - Souka,A P
AU  - Novakov,A
AU  - Nicolaides,K H
TI  - Cervical length at 23 weeks of gestation: relation to demographic characteristics and previous obstetric history
SN  - 0960-7692
PY  - 1999///0121
KW  - Adult
KW  - Cervix Uteri
KW  - anatomy & histology
KW  - Demography
KW  - Feasibility Studies
KW  - Female
KW  - Gravidity
KW  - Humans
KW  - Observer Variation
KW  - Patient Acceptance of Health Care
KW  - Pregnancy
KW  - Pregnancy Trimester, Second
KW  - Regression Analysis
KW  - Reproducibility of Results
KW  - Smoking
KW  - Ultrasonography, Prenatal
N1  - Publication Type: Journal Article; Research Support, Non-U.S. Gov't
UR  - https://doi.org/10.1046/j.1469-0705.1998.12050304.x
ER  -