{"certainAgreement":{"piSponsorEmployee":true},"limitationsAndCaveats":{"description":"Accrual to this study was stopped early after 4.5 years due to slow accrual of participants. No eligible participants were enrolled on Stratum B. All enrolled participants continue on study and results will be reported when available."},"pointOfContact":{"email":"referralinfo@stjude.org","organization":"St. Jude Children's Research Hospital","phone":"866-278-5833","title":"Michael Bishop, MD"}}