During the last 16 years, Dian Snowden has sought treatment at MD Anderson for numerous health issues, including thyroid cancer screening and a breast cancer recurrence. But it was a trip to MD Anderson’s Lyda Hill Cancer Prevention Center in December 2016 that helped spot her lung cancer.

“Even though I am 75 years old, I drive four hours to come to MD Anderson’s Cancer Prevention Center because this is where I get the best care...