TY  - RPRT
TI  - Reduction in amniocentesis risks using a real-time needle guide procedure.
AU  - R A Williamson
AU  - M W Varner
AU  - S S Grant
PY  - 1985
UR  - https://pubmed.ncbi.nlm.nih.gov/3885108/
ID  - 3885108
ER  -