Preliminary report from the World Health Organisation Chest Radiography in Epidemiological Studies project.

Mahomed N, Fancourt N, de Campo J, de Campo M, Akano A, Cherian T, Cohen OG, Greenberg D, Lacey S, Kohli N, Lederman HM, Madhi SA, Manduku V, McCollum ED, Park K, Ribo-Aristizabal JL, Bar-Zeev N, O’Brien KL, Mulholland K,