Okay.
My next question is about prevention. What should the public know about how to prevent lung cancer? We've heard about smoking and radon gas. Is there anything else in our diet? When you assess patients, are you looking at family history? Is it relevant? Is it not relevant?
Also, I know that time is limited, so therefore I'm going to ask the following question on early detection. I understand that the technology is available. Working with the national framework, there is a pilot project in Alberta that was mentioned and is being done. Once the patient is detected with a very early stage of cancer, what do you do? Do you intervene or not intervene? I've heard that sometimes early detection does not necessarily mean early intervention. How do you deal with it?