Table 21 Mitogen Responses of Cell Populations Fractionated on Glass Wool Stimulation Indexa 0b NA A NA NA NA A A NA A ; LPS (10 yg) 1.5 1.4 6.4 1.3 1.0 3.1 40 PHA (i yg) 87 248 188 463 210 291 72 (a) Triplicate cultures were incubated at 32C, pulsed on day 4 and harvested on day 5. (b) See Figure 16 for an explanation of abbreviations.