April 24, 2000

EMBARGOED until 12:01 am EDT Thursday, April 27

Media contacts:
Rami Burstein, Ph.D., Beth Israel Deaconess anesthesiology
617-667-0806; or page 617-432-7243, #35489; [email protected]

or

Carol Cruzan Morton, Beth Israel Deaconess communications
617-975-6150, [email protected]

VISUALS: An illustration will be available early Wednesday, April 26, at .
* Stephen Silberstein, M.D., professor of neurology at Thomas Jefferson University in Philadephia and director of the Jefferson Headache Center, 215-955-2072, [email protected].

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