1B525=89ABED1E295E68FDD9790E2&gwt=pay&assetType=nyt_now&referre= 1/22 5/27/14 Can the Nervous =ystem Be Hacked? - NYTimes.com <http://NYTimes.com> Mirela Mustacevic, who suffers =rom rheumatoid arthritis, had a nerve stimulator implanted as part of a =edical trial. Her symptoms have lessened significantly. SARA