Funding for this research was provided by:
National Institutes of Health (GM065281, HL122340)
Uehara Memorial Foundation
Takeda Science Foundation
Received: 4 January 2018
Accepted: 20 March 2018
First Online: 2 April 2018
Ethics approval and consent to participate
: Human trachea was obtained from discarded regions of healthy donor lungs harvested for lung transplantation at Columbia University (deemed not human subjects research by Columbia University’s Institutional Review Board).
: Not applicable.
: The authors declare that they have no competing interests.
: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.