TY  - RPRT
TI  - First-trimester chorion biopsy.
AU  - C H Rodeck
AU  - J M Morsman
PY  - 1983
DO  - 10.1093/oxfordjournals.bmb.a071845
UR  - https://pubmed.ncbi.nlm.nih.gov/6357344/
ID  - 6357344
ER  -