The RATIONS (Reducing Activation of Tuberculosis by Improvement of Nutritional Status) study: a cluster randomised trial of nutritional support (food rations) to reduce TB incidence in household contacts of patients with microbiologically confirmed pulmonary tuberculosis in communities with a high prevalence of undernutrition, Jharkhand, India. - Bhargava A; Bhargava M; Velayutham B; Thiruvengadam K; Watson B; Kulkarni B; Singh M; Dayal R; Pathak RR; Mitra A; Rade K; Sachdeva KS (BMJ open, 2021)