TY  - GEN
AU  - Sheldon,T A
AU  - Simpson,J
TI  - Appraisal of a new scheme for prenatal screening for Down's syndrome
SN  - 0959-8138
PY  - 1991///0712
KW  - Adult
KW  - Chorionic Gonadotropin
KW  - blood
KW  - Cost-Benefit Analysis
KW  - Diagnostic Tests, Routine
KW  - economics
KW  - Down Syndrome
KW  - diagnosis
KW  - Estriol
KW  - Female
KW  - Fetal Diseases
KW  - Humans
KW  - Maternal Age
KW  - Predictive Value of Tests
KW  - Pregnancy
KW  - Pregnant People
KW  - Prenatal Diagnosis
KW  - Risk Factors
KW  - alpha-Fetoproteins
KW  - metabolism
N1  - Publication Type: Journal Article
UR  - https://doi.org/10.1136/bmj.302.6785.1133
ER  -