Citation: Negi PC, Merwaha R, Rao S, Asotra S, Mahajan A, Joshi A. School-based surveillance for detection of children with acute pharyngitis, rheumatic fever/rheumatic heart disease in Shimla district, Himachal Pradesh, India: A cluster randomized controlled trial. Indian Heart J. 2018 Dec;70 Suppl 3:S74-S81. doi: 10.1016/j.ihj.2018.05.015. Epub 2018 May 30.