Magnetic therapy made its debut in the city almost two years ago, but its clinical efficacy among Indian patients in only now getting established. Sonawalla has treated 65 people with major depression using the technique at her Trans Mag Well-Being Clinic on Peddar Road. "Of these, 28 had treatment-resistant depression, 37 had moderate to severe major depression," she said. Each patient responded to the waves, but in different measures. Those who were resistant to medical treatment showed about 60% response, while persons with moderate to severe depression registered 90% improvement.