What are the potential barriers to adoption?

•  Creation and connection of tissues produced outside the body
•  Connection with the body's blood vessels, blood supply and oxygen                                     
•  Synthetically engineered cells dying before the tissue forms due to a lack of blood vessels
•  Connection these types of vascular networks to natural blood vessels 
•  Supply of blood 

           http://www.bbc.co.uk/news/science-environment-12507034)

           http://www.cbc.ca/news/yourcommunity/2012/07/lab-grown-human-organs-closer-than-ever-                 according-to-scientists.html)

           http://news.cnet.com/8301-13772_3-20002741-52.html?tag=mncol;2n)