Patients on the trial have not needed medication to manage their condition.
This story was originally reported by BBC News. For the complete coverage and latest updates, visit the original source.
Read the full story at BBC News.

Patients on the trial have not needed medication to manage their condition.
This story was originally reported by BBC News. For the complete coverage and latest updates, visit the original source.
Read the full story at BBC News.
Originally reported by BBC News. Read the original article