Journal Article
                        
                        Boccia, Delia, James  Hargreaves, Helen  Ayles, Katherine  Fielding, Musonda  Simwinga, and Peter  Godfrey-Faussett.  
"Tuberculosis infection in Zambia: the association with relative wealth." The American journal of tropical medicine and hygiene 80, no. 6 (2009): 1004-1011.