I have a lot of research experience but no publications, despite 3 years spent in a lab during/after my MS - I (with modest stats) still got an II very soon after submitting to VTC. Anyone in science recognizes that lab size, mentors, model used, discipline, luck, etc. affect publishing output. They are more likely to care that you can clearly and concisely convey your research, probably intertwined with broader impacts, and apply this analytical ability and scientific acumen to your career as a med student/physician.