Stan Brock traveled to Georgetown, British Guiana (now known as Guyana) in the early 1960's. While there, he suffered an injury and was 26 days away from medical care. Brock was inspired by that experience to create Remote Area Medical (RAM), a charity that has helped countless of people in the US receive proper medical care. 

https://en.wikipedia.org/wiki/Stan_Brock_(philanthropist)