the labelling index ( li ) of the synoviocytes of the lining-layer cells and of the underlying connective-tissue cells was determined in the synovial membrane of 5- , 10- , 21- , 30- , and 55 day-old mice , following a pulse labelling with [ 3h ] -thymidine .
C0224522
synoviocytes
C0039099
synovial membrane