Figure 2From: Marked alveolar apoptosis/proliferation imbalance in end-stage emphysemaAI in controls vs emphysema patients: Significantly higher AI was found in emphysema patients (6.5 ± 3.5 vs 2.7 ± 2.6, p ≤ 0.01) ◊ = AAT-deficiency emphysema; ○ = smoking-related emphysema.Back to article page