The burden and natural history of cardiac pathology at TB diagnosis in a high-HIV prevalence district in Zambia: protocol for the TB-Heart study oleh Marcello S. Scopazzini, Pamela Chansa, Edith D. Majonga, Nina Bual, Albertus Schaap, Kondwelani J. Mateyo, Remmy Musukuma, Veronica Mweemba, Maina Cheeba, Chipili C. Mwila, Lucheka Sigande, Isabel Banda, Joseph Ngulube, Kwame Shanaube, Dominik Zenner, Helen Ayles, Anoop S. V. Shah