Effectiveness of an intervention led by lay health counsellors for depressive and anxiety disorders in primary care in Goa, India (MANAS): a cluster randomised controlled trial

Vikram Patel, Helen A Weiss, Neerja Chowdhary, Smita Naik, Sulochana Pednekar, Sudipto Chatterjee, Mar J De Silva, Bhargav Bhat, Ricardo Araya, Michael King, Gregory Simon, Helen Verdeli, Betty R Kirkwood