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. Author manuscript; available in PMC: 2015 Apr 25.
Published in final edited form as: Int J Pharm. 2014 Feb 7;465(0):52–62. doi: 10.1016/j.ijpharm.2014.01.043

Figure 1.

Figure 1

The active dry powder inhaler (DPI) system including a ventilation bag, flow meter (for experimental testing only), inline DPI (containing a flow control orifice and 3D rod array), and streamlined nasal cannula.