Figure 4From: Understanding drug uptake and binding within targeted disease micro-environments in patients: a new tool for translational medicineAirway wall biopsies of two subjects treated with inhaled ipratropium detected by MALI-MSI. One sample (A-C) with intact airway wall showed specific ipratropium mass fingerprint (m/z 332.22) while subject with airway tumor (D-F) showed no drug uptake.Back to article page