Zhang W, Zhang YS, Bakht SM, Aleman J, Shin SR, Yue K, Sica M, Ribas J, Duchamp M, Ju J, Sadeghian RB, Kim D, Dokmeci MR, Atala A, Khademhosseini A. Elastomeric free-form blood vessels for interconnecting organs on chip systems. Lab Chip. 2016 04 26; 16(9):1579-86.