within 3 days after the first fMRI scanning and the
second scanning should be done within 3 days after the
acupuncture treatment course ended. It has to be emphasized
that if there was a migraine attack during the
due date of scanning, the fMRI scan should be postponed
for 72 hours. Another rule for female subjects in
both the migraine and control groups was that all fMRI
scanning should be done at least 3 day away from their
menstrual period.