Induced pluripotent stem cells have allowed scientists to model various diseases and screen drugs in these in vitro models. Please provide information on induced pluripotent stem cells and their use...

Induced pluripotent stem cells have allowed scientists to model various diseases and screen drugs in these in vitro models.
Please provide information on induced pluripotent stem cells and their use as described above (model various diseases and screen drugs in these in vitro models). Please explain clearly and nicely. THANKS