G4N - What does G4N stand for? The Free Dictionary
References in periodicals archive
6) the control group (G4) was divided into G4N
(normal control group) and G4D (denervation control group) for comparisons with other groups.
The experiments have been performed using ultrasonic probes with nominal frequency of 4MHz that differ in frequency bandwidth (factor bandwidth); K4G [70% bandwidth] and G4N