Why won't you tell me which one I got?

Not to trick you. Knowing changes what we see, because if you know you got the new drug you genuinely feel more hopeful and you describe your symptoms differently. That happens to everyone and it is human.

Sometimes only you do not know. Sometimes we do not know either. And if you get sick and we need to know, we can find out at once. Any time, day or night.

Written by two physicians. Checked against patient information from the US National Cancer Institute and Cancer Research UK.