Fig. 2From: Cytotoxic lymphocytes in COPD airways: increased NK cells associated with disease, iNKT and NKT-like cells with current smokingPart 1, 2 and 3: NK, iNKT and NKT-like cell populations in BAL fluid. Data shown as median and IQR. LF: lung function. Shown p-values calculated using the Mann-Whitney U-test. See Additional file 1 for corresponding data in tablesBack to article page