Bifurcation vascular tubes and cell-laden hydrogel rings bioprinted using stereolithography (a) CAD models of bifurcation vascular tubes (left) and the resulting hydrogel vessels visualized by their cross-section and top view (right). (b) Fluorescence image (bottom) and photography (top) of a cell-laden hydrogel construct. Republished with permission of Royal Society of Chemistry, from Three-dimensional fabrication of cell-laden biodegradable poly9ethylene glycol-co-depsipeptide) hydrogels by visible light stereolithography, Elomaa et al. Vol. 3, Issue 42. Copyright (2015), permission conveyed through Copyright Clearance Center, Inc. [56].