The use of murine embryonic stem cells, alginate encapsulation, and rotary microgravity bioreactor in bone tissue engineering - Hwang, Y-S; Cho, J; Tay, F; Heng, JYY; Ho, R; Kazarian, SG; Williams, DR; Boccaccini, AR; Polak, JM; Mantalaris, A (BIOMATERIALS, 2009)