There are multiple definitions:

1. breakpoint cluster region(English)

   • ABL, FTK, BCR-ABL, Ph
   • Genetics
   • https://doi.org…0/cells10071831
   • https://doi.org…shem.2003.50034

2. B cell receptor(English)

   • TCR, IgG, IgM, COVID-19, MHC, ITAM, Fab, Fc
   • Receptors
   • https://doi.org…science.add8065

3. Blood urea nitrogen to Creatinine Ratio(English)

   • helps to differentiate between prerenal acute kidney injury (PR AKI) and intrinsic AKI. This ratio is simple to use and is often put forward as a reliable diagnostic tool, although there are doubts about validity
   • AKI, BUN
   • Kidney and adrenals, Ratio-based metric, Diagnostics, Emergency medicine, Critical Care
   • https://doi.org…2882-017-0591-9

4. biochemical recurrence(English)

   • refers to an analysis
   • PCa, PSA, RP
   • Biochemistry, Prostate
   • https://doi.org…ros.2021.06.002
   • https://doi.org…3148-016-0270-x

5. birth certificate record(English)

   • MAX
   • Neonatal situation, Legal issues
   • https://doi.org/10.1002/pds.4843

6. bone cement rebridging(English)

   • IS-BCR, MS, MS-BCR, IP, IS
   • Auditory system, Surgery
   • https://doi.org…003489415618678