I am applying to anesthesiology in ERAS 2018-2019. I was wondering whether it would be acceptable to get LORs from anesthesiologists with whom I rotated in my free time during the summer (not as part of a med school clerkship). Otherwise, my anesthesiology rotation would be in September at the soonest and I don't think I could get a letter in time for it to matter for ERAS.