Figure 3From: Development of a BALB/c 3T3 neutral red uptake cytotoxicity test using a mainstream cigarette smoke exposure systemWhole smoke dose–response. [A] Percentage relative cell survival from three independent experiments, indicating inter- and intra-experimental variation. [B] Mean pooled data from three experiments with a correlation coefficient of R2 = 0.90 and a dilution IC50 of approximately 6.02 L/min for the 184 minute exposure to mainstream tobacco smoke.Back to article page