There are multiple definitions:

1. baseline capillary density(English)

   • see Matsuda index
   • MetS, PRH
   • Microcirculation

2. bone conduction device(English)

   • AHL, CI, CROS-HA, HA, SSD
   • Auditory system
   • https://doi.org….1159/000455058

3. broad categories for the diagnosis(English)

   • refers to an alternative system for classification
   • BCD-ED, EDI-2
   • Diagnostics, Classification
   • https://doi.org….1002/eat.20722