Cancer Survival Rate Better Among Untreated

Classics in Oncology
Survival in Untreated and Treated Cancer 
Michael B. Shimkin, M.D. Matthew H. Griswold, M.D. Sidney J. Cutler, MA.

"As clinical experience accumulated, it also was realized that long-term survivors are encountered among patients with cancer who refuse treatment. In some types of neoplastic disease, a considerable proportion of untreated patients survive well beyond the classic five-year period."