AUTHOR=Morouço Pedro , Lattanzi Wanda , Alves Nuno TITLE=Four-Dimensional Bioprinting As a New Era for Tissue Engineering and Regenerative Medicine JOURNAL=Frontiers in Bioengineering and Biotechnology VOLUME=5 YEAR=2017 URL=https://www.frontiersin.org/journals/bioengineering-and-biotechnology/articles/10.3389/fbioe.2017.00061 DOI=10.3389/fbioe.2017.00061 ISSN=2296-4185