@article{780834,
      note = {Includes index.},
      author = {Sierra, Rafael J.,},
      url = {http://library.usi.edu/record/780834},
      title = {Osteonecrosis of the femoral head : a clinical casebook /},
      recid = {780834},
      pages = {1 online resource (xiii, 257 pages) :},
}