Roger Stern takes a break for two fill-in issues. #63 came out in February, but it’s a bimonthly so that issue is the Assistant Editor Month story and Ann Nocenti appears on the letters page dressed as the doctor.
Other than that, these are inconsequential done-in-ones.
Issue #63 was written by Carl Potts–his first Marvel script, and #64 was by Ann Nocenti. The art for both is by Tony Salmons, in what I think is his first Marvel work.