An algorithm encoded using the XML template for the ASI for HIV drug resistance. Although it is syntactically correct, this algorithm contains only two rules and was therefore only designed as an example. This file shows the required XML tags, including the introductory tags for algorithm name, level definitions, drug classes, and drugs, as well as the tags for rules, conditions, and actions. The complete XML specification of five algorithms can be found at http://hivdb.stanford.edu.