@article{383494,
      author = {Gable, Alicia. and Lagakos, Stephen W.},
      url = {http://library.usi.edu/record/383494},
      title = {Methodological challenges in biomedical HIV prevention  trials [electronic resource] /},
      publisher = {National Academies Press,},
      recid = {383494},
      pages = {xi, 258 p. :},
      address = {Washington, D.C. :},
      year = {2008},
}