My Nonprofit Reviews

I met Dr. Zirkle at an AAOS meeting. I was extremely impressed with his candor and kindness. I came to learn what a difference SIGN has made in the quality of life for so many people.

As an Orthopedic surgeon, it made so much sense to support his organization. The very idea of manufacturing the implants, providing education and distributing them throughout the world was inspiring. There was no doubt that the energies and efforts were immeasurable (philosophical and philanthropic).

Marc Appel, M.D.