Funding for this research was provided by:
U.S. Department of Health & Human Services | National Institutes of Health (R01EB027096)
U.S. Department of Health & Human Services | NIH | National Institute of General Medical Sciences (R15GM123405-02)
Received: 27 January 2021
Accepted: 31 August 2021
First Online: 17 September 2021
: Two of the authors (G.P.N. and A.T.W.) own shares in Acrea 3D, a company commercializing microfluidic 3D printing. The remaining authors declare no competing interests.