@article{bhatti_sadik_2011, 
  title={PP-116 The prevalence of hepatitis delta virus (HDV) and different ethnical groups in Sind, Pakistan}, 
  volume={15}, 
  DOI={10.1016/s1201-9712(11)60268-3}, 
  publisher={Elsevier BV}, 
  author={Bhatti and Sadik}, 
  year={2011}
  }