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. Author manuscript; available in PMC: 2011 Feb 28.
Published in final edited form as: Respir Physiol Neurobiol. 2009 Dec 28;170(2):202. doi: 10.1016/j.resp.2009.12.010

Fig. 6.

Fig. 6

Screenshot from the video clip submitted as Supplementary Material SM5. The blood and air capillaries can be seen with the epithelial bridges. ac, air capillary; bc, blood capillary; ep, epithelial bridge.