TY  - RPRT
TI  - Randomized trial comparing first-trimester transcervical chorionic villus sampling and second-trimester amniocentesis.
AU  - P Ammälä
AU  - V K Hiilesmaa
AU  - S Liukkonen
AU  - T Saisto
AU  - K Teramo
AU  - H von Koskull
PY  - 1993
DO  - 10.1002/pd.1970131006
UR  - https://pubmed.ncbi.nlm.nih.gov/8309899/
ID  - 8309899
ER  -