NIST means National Institute of Standards and Technology
U.S.A. in
Medical Physics
Similar to NIST
NTCP - Normal tissue complication probability
OAR - Off-Axis Ratio
ODI - Optical distance indicator
OER - Oxygen enhancement ratio
OF - Obliquity factor; Output factor
OSL - Optically stimulated luminescence
PA - Postero-anterior
View all in Medical Physics