... MedicalAssociation Journal 15 7 (19 97).ORGANIZATIONSNational Stroke Association. 9707 E. Easter Lane, Englewood,Colarado 8 011 2. 30 3- 6 4 9-9 299 or 1- 800-strokes; Fax: 30 3- 6 49 -1 3 28. <http://www.stroke.org>.Laith ... Michigan Avenue, Suite 11 00, Chicago, IL 60 611 -1 6 76. ( 31 2 ) 33 5-8 700 or (800)LetterB.qxd 10 /5/04 2:40 PM Page 15 5 19 0 GALE ENCYCLOPEDIA OF NEUROLOGICAL DISORDERS Carotid endarterectomyCarotid endarterectomy. ... in-volve the rapid freezing of the sample and slicing of the still-frozen material. The latter technique has the advan-tage of avoiding the removal of water, which can alter the structure of...