Just to add my 2 cents on completion, I had some colleagues that did all the years on Biochemistry but the last, where they jumped to Medicine. They could just finish that year and get the paper, but:
- Bachelor on Biochemistry won't give you a job here. You need Masters in Biochemistry to even work in a clinic.
- They weren't interested in the first place, they attended Biochemistry because they didn't reach high enough grades to enter directly into Medicine, so they just gathered enough credits to trade majors (and Biochemistry shares 1 discipline with Medicine, Histology).