- Dr LJ Drop, Department of Anesthesia, Massachusetts General Hospital, Boston Massachusetts 02114. Telephone 001 617 724 3278; fax 001 617 726 7536; email
- Received May 13, 1997
- Revised October 6, 1997
- Accepted October 20, 1997
- First published June 1, 1998.
If you wish to reuse any or all of this article please use the link below which will take you to the Copyright Clearance Center’s RightsLink service. You will be able to get a quick price and instant permission to reuse the content in many different ways.