"The phrase “virtual human” conjures up images of online avatars, or the pixelated people and polygon personas created for the next Hollywood blockbuster. But in biology, it refers to something rather more exciting – the way computers enable us to build lifelike models of organs, down to the last cell, that are providing extraordinary new insights into our bodies and minds."

http://www.telegraph.co.uk/science/roger-highfield/10210105/Meet-your-digital-doppelganger.html