IL1B and acute respiratory distress syndrome: Among leukocyte (Figure 3B2) and neutrophil (Figure 3C2) recruitment, total protein (Figure 3D2) and albumin (Figure 3E2) leakage, and IL‐1β (Figure 3F2) and IL‐6 (Figure 3G2), the combination‐conditioned mediums at low or high doses could improve 45–50% or 60–70% of total protein or albumin leakage in ALI, respectively, superior to the mediums from MSCs or TCs.