when examined for their responsiveness to phytohemagglutinin-t cell conditioned media ( pha-tcm ) , the patient 's b cells displayed impaired b cell proliferation compared with control b cells ( stimulation index [ si ] 1.3 +/- 0.20 v 26 +/- 1.4 with 20 % control pha-tcm [ vol/vol ] ) .
C1155008
b cell proliferation
C0004561
b cells