Ross CL, Booth C, Sanders B, Babbar P, Bergman C, Soker T, Sittadjody S, Salvatori M, Al-Shraideh Y, Stratta RJ, Orlando G. Regeneration and bioengineering of transplantable abdominal organs: current status and future challenges. Expert Opin Biol Ther. 2013 Jan; 13(1):103-13.