Improving the scalability of psychological treatments in developing countries: an evaluation of peer-led therapy quality assessment in Goa, India. by Singla, DR, Weobong, B, Nadkarni, A, Chowdhary, N, Shinde, S, Anand, A, Fairburn, C, Dimijdan, S, Velleman, R, Weiss, H, Patel, V