Hmm.

For stage II, where again, in broad strokes, if there's a tumor in the lung, but some close by lymph nodes are involved, it would be surgery for that patient with chemotherapy.

And now they're trying to...

There are some new scientific kind of, uh, approaches where some form of chemotherapy is given before the surgery, and then the surgery is done afterwards, and sometimes chemotherapy follows after that.

Stage III is when some, when the, the tumor is in the lung, but some further away lymph nodes are involved, and generally those pe- people are treated with chemotherapy, with or without radiation up front, and then surgery.

And then stage IV is where it's moved to some distant, far part of the body, the brain, the bone, and generally those patients will get some form of chemotherapy, or they'll be enlisted in a clinical trial to try to see if there's a new, uh, agent that can reverse, um, the, the tumor growth.

And, you know, there's been a lot of very encouraging progress in the field of controlling tumor spread in lung cancer.

What is the difference between non-small cell and small cell?