Fig. 2. In vitro effects of exposure of alveolar type II cells to halothane (1%) or thiopental (100 μm) for 4 and 8 hours on surfactant-associated protein C:β-actin messenger RNA ratio (percentage of control value, n = 3 per condition, mean ± SD). *P < 0.05 versus control values. (Alveolar type II cells cultured in standard conditions.)