The Cardinal Symptom chapters of Rosen’s are goldmines of medical morsels practically designed to nourish the intern for his or her first month in the ED. We thought, what better way to prepare them than to baste them in the goodness of Rosen’s? Each intern at our program prepared a one page summary of an individual Cardinal Symptom chapter. There are 24 in total, so several had to ‘double-up.’ When combined, they serve as a quick reference guide, able to be accessed on a shift via smart phone. We think the learning, and re-learning, will be invaluable. Let us know if you agree.