Vitamins Dr. Gordon Recommends to Boost Immune System re: COVID-19

Dr. Mark Gordon is an expert in the field of neuroregenerative medicine and the treatment of Traumatic Brain Injuries.

SFC Andrew Marr is a Green Beret, co-founder of the Warrior Angels Foundation, and author of "Tales from the Blast Factory". He is also one of the subjects in the new documentary "Quiet Explosions" available now.