TY  - RPRT
TI  - Cigarette smoking in pregnancy results in marked decrease in maternal hCG and oestradiol levels.
AU  - L Bernstein
AU  - M C Pike
AU  - R A Lobo
AU  - R H Depue
AU  - R K Ross
AU  - B E Henderson
PY  - 1989
DO  - 10.1111/j.1471-0528.1989.tb01582.x
UR  - https://pubmed.ncbi.nlm.nih.gov/2923845/
ID  - 2923845
ER  -