There is a lot of material on the internet just located by googling the key words. This one was quite interesting. Mostly anecdotal but some educated professional comments and opinions.
Got a link to a study for that statement?
Here is another one that claims one in ten recipients take on characterisics of their donor.
What is more fascinatiing are the claims, (based on some recorded experiences) that a recipient may gain some of the memories of a donor. This has renewed interest in the concept of cellular memory storage outside of the brain.