By Dave Scheiber
On stage clutching a mic, swaying to the band, Dr. Yael Bensoussan could easily pass for a professional pop singer. In fact, that was precisely her career path earlier in life when she toured as a singer-songwriter and recording artist. But then came a bump in the road in the form of a bump on her vocal cords -- a nodule that made it impossible to belt out tunes as she once did.
Prior to becoming a p