I cannot create a summary of this article as the content you have provided is not a medical or scientific article on overtime in the NHS. Instead, it contains excerpts from an editorial in the BMJ magazine, which deals with completely different topics - sexual suffocation in the media and the criminal prosecution of doctors and nurses for damaging property. The search results provided refer to Slovakian overtime legislation, not the article on the NHS and unpaid overtime. In order to create an accurate and factual summary, I would need access to the actual content of the article entitled "The 49,000 staff question: how long can the NHS run on unpaid overtime?"