@article{63829,
      recid = {63829},
      title = {Health maintenance organizations : a reconfiguration of  the health services system : proceedings of the thirteenth  annual Symposium on Hospital Affairs, May 1971 /. Symposium  on Hospital Affairs},
      publisher = {The Center,},
      address = {Chicago :},
      pages = {iv, 90 p. ;},
      year = {1971},
      url = {http://library.usi.edu/record/63829},
}