There are multiple definitions:

1. hepatitis C virus(English)

   • IDU, MC, RBV, VHPB, HBV
   • Virology, Hepatology, Transmissible disease, Hematology, Screening
   • https://doi.org…55/2019/2509059
   • https://dx.doi.…136/ard.59.1.20

2. hippocampal volume(English)

   • also as HV
   • aMCI, naMCI, Aβ, CSF, AD, APOE, HV
   • Brain (dys)function, Medical imaging, Alzheimer's disease
   • https://doi.org…b013e318288690c
   • https://doi.org…ing.2011.12.017