How are children surviving cancer today? Better than ever before. Some childhood cancer patients, now in their young adult years, are expecting to reach milestones in their lives others before them never would have reached.

Today, 1 in 1,000 young adults in the United States is a childhood cancer survivor. In the 1970s, the chance a child would outlive leukemia or lymphoma was 25 percent. Today, it's 80 percent. That's better than most adult recovery rates.

As recovery rates rise, a new frontier is on the horizon -- follow-up for these young people as they age. You see, the very treatments that saved these individuals may cause them complications later in life. It's not yet clear what happens when kids live 20 to 30 years beyond diagnosis. But teams at St. Jude Children's Research Hospital in Memphis, Tennessee, plan to find out as they launch one of the most ambitious follow-up programs to date. Contacting 5,000 patients who have survived for more than 10 years, doctors hope they will recruit a group to receive free check-ups for life. They'll also receive blood tests, MRI scans, even fertility counseling. Their medical histories will serve as rich textbooks for medical professionals and future patients -- so the war on childhood cancer can continue.