Journals undeliverable because of incorrect address will be destroyed. Duplicate copies may be obtained, if available, from the Publisher at the regular price of a single issue. If a member, please contact the Congress with your change. Reprints of individual articles are available only from the authors. Reprints in large quantities, for commercial or academic use, may be purchased from the Publisher.
Prices are available upon request.
All promotional literature must be approved in advance. Orders must be received by the Publisher before December 1, 2000. The appearance of advertisements in the Journal is not a warranty, endorsement, or approval of the products or their safety. The Congress of Neurological Surgeons and the Publisher disclaim responsibility for any injury to persons or property resulting from any ideas or products referred to in the articles or advertisements. Volume indices appear in the June and December issues.