This information is current as of January 31, 2014. Pillars Article: Approaching the Asymptote? Evolution and Revolution in Immunology. Cold Spring Harb Symp Quant Biol. 1989. 54: 1 13 Charles A. Janeway, Jr. Subscriptions Information about subscribing to The Journal of Immunology is online at: http://jimmunol.org/subscriptions Permissions Submit copyright permission requests at: http://www.aai.org/ji/copyright.html Email Alerts Receive free email-alerts when new articles cite this article. Sign up at: http://jimmunol.org/cgi/alerts/etoc The Journal of Immunology is published twice each month by The American Association of Immunologists, Inc., 9650 Rockville Pike, Bethesda, MD 20814-3994. All rights reserved. Print ISSN: 0022-1767 Online ISSN: 1550-6606. Downloaded from http://www.jimmunol.org/ at Cinvestav del IPN on January 31, 2014 J Immunol 2013; 191:4475-4487; ; http://www.jimmunol.org/content/191/9/4475.citation