TY  - RPRT
TI  - Voluntary licensing and IVF/ET.
AU  - I Craft
AU  - P R Brinsden
AU  - E G Simons
PY  - 1987
DO  - 10.1016/s0140-6736(87)91709-0
UR  - https://pubmed.ncbi.nlm.nih.gov/2883476/
ID  - 2883476
ER  -