TY  - RPRT
TI  - Embryoscopy: old technique new for the 1990s?
AU  - G Ghirardini
PY  - 1991
DO  - 10.1016/0002-9378(91)90717-6
UR  - https://pubmed.ncbi.nlm.nih.gov/2035581/
ID  - 2035581
ER  -