I imagine this approach is less effective than another recent approach where they put "insulin-making islet cells onto a layer of fat in the recipient’s abdomen

I imagine this approach is less effective than another recent approach where they put "insulin-making islet cells onto a layer of fat in the recipient’s abdomen", right? (http://www.endocrineweb.com/news/diabetes/17843-no-more-insulin-shots-thanks-new-type-islet-cell-transplant http://www.endocrineweb.com/news/diabetes/17843-no-more-insu...)