First national tuberculin survey in Viet Nam: characteristics and association with tuberculosis prevalence

Authored by: Hoa N. B., Cobelens F. G. J., Sy D. N., Nhung N. V., Borgdorff M. W., Tiemersma E. W.
In: INTERNATIONAL JOURNAL OF TUBERCULOSIS AND LUNG DISEASE 17(6), 2013, p.738-744
http://www.ncbi.nlm.nih.gov/pubmed/23676155