I have the highest respect for the scientific way you approach these questions, and it would be very interresting and a good thing if the questions you bring up would be answered in the future. No, but the fact that smoking is proved to cause this to the rate of 99.9% while the effects of trumpet playing is unknown speaks its own language, I think. If a lot of trumpeters had gained diseases like this, it would most likely be known as well as spoken about. Thanks for sharing your knowledge as well as thoughts of the matter. I think one could at least say that there is no reason for feeling alarmed! Also thanks all the rest of you for giving your contributions to this discussion! If someone feels that he or she has things to add, please feel free to do so!