There are multiple definitions:
biochemical pregnancy loss(English)
- LMWH therapy is more effective in improving the live birth rate when given after ovulation than after pregnancy confirmation
- LDA, LMWH, RM
- Pregnancy, Clinical chemistry
- https://doi.org…Lab.2019.190637
betapropiolactone(English)
- an inactivant for infectious bovine rhinotracheitis virus
- IBR
- Veterinary medicine, Virology
- https://doi.org…vsc.2007.12.009