What type of cancer is caused (or prevented!) by cell phone usage?

(What is true of multiple causes is true of multiple outcomes!)
Colon Leukemia
Melanoma Renal Cell
Testicular Pancreatic
Oral Non-Hodgkin Lymphoma
Liver Prostate
Glioma Ovarian
Gallbladder Osteosarcoma
Uterine Esophogeal
Stomach Thyroid
Cervical Breast

The chance that nothing is significant is only 0.3585,
so don't give up hope!