%0 Journal Article %T The root problem of heart valve engineering %J - %D 2018 %R 10.1126/scitranslmed.aat5850 %X Acellular heart valve grafts optimized through computational modeling recellularize and function in sheep for up to 1 year (Emmert et al., this issue) %U http://stm.sciencemag.org/content/10/440/eaat5850