Dr Nisha Gupta, Health Advisor, Smile Foundation, appearing on Banega Swasth India 12-hour Swasthagraha, a campaign for a healthy India with Amitabh Bachchan, says we believe in comprehensive primary healthcare services. "We provide accessible, affordable and quality services through 40 smile vans. Early detection is the focus of these mobile vans that reaches the doorstep of the people. In a nutshell, prevention is the key."