I searched this, but only could find it about pharmacy school....my question is this: when is it best to add an extra letter of recommendation? I have already graduated, and the letter is from the head surgeon of the hospital at which I working as a researcher. Should I hold on to the letter of rec in case I end up on a wait list? should i use the letter if i dont seem to be getting interviews? if the second is the case, when should i decide that the likelihood of getting an interview invitation is dwindling? Thanks in advance...