This add-on is really helpful for students (not just medical). It did a tremendous job for my master thesis in Economy.
Some of the great things you can do with it is to search through free books on the Amazon or to find proper citation quotes. Just that two things spared me 10+ hours of my work.
I am really thankful to a friend of mine who recommended this add-on to me and I will spread a word to my classmates as well.
Keep up with a great work!