Army Hospital (R&R) in New Delhi performs advanced Deep Brain Stimulation surgery on a 33-year-old soldier with young-onset Parkinson's disease. Kolkata: Army Hospital (Research & Referral) in New Delhi has successfully performed an advanced Deep Brain Stimulation (DBS) surgery on a 33-year-old serving soldier diagnosed with young-onset Parkinson's disease, offering him renewed prospects of improved motor control, independence, and quality of life.