Pednekar, M. S., Ghosh, P., Warke, S., Jones, L. C., Narake, S., Sorensen, G., Gupta, P. C. and Nagler, E. M. (2026) “Scaling up tobacco control in India: a protocol for a hybrid III cluster randomized trial comparing smartphone to in-person training to implement a tobacco control program for school teachers”, International Journal of Clinical Trials, 13(2), pp. 222–231. doi: 10.18203/2349-3259.ijct20261388.