Stem cells: cross-talk and developmental programs.
Jaime Imitola, Kook In Park, Yang D Teng, Sahar Nisim, Mahesh Lachyankar, Jitka Ourednik, Franz-Josef Mueller, Rene Yiou, Anthony Atala, Richard L Sidman, Mark Tuszynski, Samia J Khoury, and Evan Y Snyder
Philos Trans R Soc Lond B Biol Sci. 2004 May 29; 359(1445): 823–837. PMCID: PMC1693371