@article{,
      note = {Distributed to some depository libraries in microfiche.},
      url = {http://library.usi.edu/record/235568},
      title = {Medicare provider service networks : hearing before the  Subcommittee on Health and Environment of the Committee on  Commerce, House of Representatives, One Hundred Fifth  Congress, first session, March 19, 1997.},
      publisher = {U.S. G.P.O. :},
      number = {Serial no. 105-48 (United States. Congress. House.  Committee on Commerce)},
      recid = {235568},
      pages = {iii, 112 p. :},
      address = {Washington :},
      year = {1997},
}