Meanings of group of 2 in English

Another group of 2,3-dehydrosilybin derivatives also had better inhibitory effects on P-gp efflux but a cytotoxicity comparable with that of parent 2,3-dehydrosilybin.

The activated carboxylic group of 2,4-D was linked either directly to the silanized surface or through hexamethylenediamine or albumin as a macromolecule.

The therapeutic decision was taken blind by two groups of 2 cardiologists.