@article{1457592,
      author = {Younes, Ronald, and Nader, Nabih, and Khoury, Georges,},
      url = {http://library.usi.edu/record/1457592},
      title = {Sinus grafting techniques : a step-by-step guide /},
      recid = {1457592},
      pages = {1 online resource (260 pages) :},
}