Following my email to The Observer, a reply arrived in my inbox:
Received this evening, 25.11.2011, 7.45 pm.
Dear Mr Warren
I have been passed the letter you wrote to the Reader’s Editor re. the Burzynski Clinic. We are carrying out furher research into the story and the clinic.
In the meantime, I wondered if you would be interested in having your letter published on our Letters page?
We never run notes sent to the ‘reader’ email as letters before asking the writer.