Geographical and temporal variation of injection drug users in Pakistan
Chris P Archibald, Souradet Y Shaw, Faran Emmanuel, Suleman Otho, Tahira Reza, Arshad Altaf, Nighat Musa, Laura H Thompson, James F Blanchard
Sexually Transmitted Infections Sep 2013, 89 (Suppl 2) ii18-ii28; DOI: 10.1136/sextrans-2012-050775