INFORMATION FOR THE AUTHORS: The reviews , in English or Spanish should not exceed 350 words and must have at least: * Title * Name of the author * Name of the Institution where the research was done. * Addresses, email and/or postal. * Sources of information or sponsorships received. The easy is recommended to be presented following: * Introduction * Materials and Methods * Results * Conclusions All work should be accompanied by a letter of presentation from the person it belongs to (with contact address/es and telephone number/s), showing that the final manuscript has been approved by all the participants in it. The reviews (in any form) should be presented in either of the following formats: * Text * HTML Format Images should be done in .gif, .jpg or .tif formats, taking into considerarion that the more bits it has it'll take longer to be viewed in the web. Work can be sent by email@example.com as Text format and/or with file attachments Deadline date for the drafts is the 31st January, 2000. The Scientific Committee of CIN2000 wishes to be informed of any commercial associations that can create conflict of interests regarding all work presented. Intelectual property: It will be kept by the authors, with given permission to the Congress to publish them, allowing to be viewed from the Web Pages and CD ROM, but cannot neither be reproduced nor transmitted in any other format at all without previous authorization by its author/s and editor/s.