Preston has been recovering from having surgery for lung cancer.
In an email to supporters, Preston wrote that she had a follow-up appointment at Sloan in New York City and that her recovery is coming along nicely.
She will receive chemotherapy treatments locally for the next four months.
Preston has been cleared to return to work later this month, starting with half days and progressing up to full days.
In the meantime, Preston says she will continue to do some work from home via Skype.
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