Seeking Professional Hospital Recommendations for Treating Dwarfism

My niece is in high school now, but she is not even 1.50 meters tall. Although my brother and sister-in-law are not tall, there is no genetic factor of dwarfism in the family. I am worried that we might have missed the best treatment period. Is it too late for treatment now? And is it possible that taking too many calcium tablets when she was young caused this? I am looking for assistance: I would like to know where the best hospitals for treating short stature are located?
One minute to read