I am a trumpet player who has had medical issues related to trumpet playing, and I think Dr. Dave's articles are interesting to read.
I have cysts on my lower lip where my mouthpiece sits, and I have had surgery to remove them, but they keep coming back. Knowing about issues that can affect your playing career is a good thing, even if they are relatively uncommon.
It is sad that Dr. Dave is not posting here anymore. His information is far more informative than 75% of the stuff posted on this website, considering so many people just post one liners and emoticons or +1's.