Complex sentence: Though there is still confusion in differentiating ulegyria and polymicrogyria in patients, MRI allows for the proper identification in the majority of the cases, and most of the current research regarding ulegyria is focused on improving this identification.
Split into simpler sentences: Though there is still confusion in differentiating ulegyria and polymicrogyria in patients, MRI allows for the proper identification in the majority of the cases. In addition, most of the current research regarding ulegyria is focused on improving this identification.