Finding the missing millions: lessons from 10 active case finding interventions in high tuberculosis burden countries - Madhukar Pai; Vaidehi Nafade; Paulami Sen; Miranda Brouwer; Charity Oga-Omenka; Nathaly Aguilera Vasquez; Tripti Pande; Danielle Cazabon; Jacob Creswell; Oriol Ramis; Robert Hartley Stevens; Ramya Ananthakrishnan; et al. (BMJ Global Health)