Welcome to ACE, the search engine that powers the Informatics Consultation Service. See a brief video of ACE in action below. Note: the video refers to ACE by its older name based on the Advanced Temporal Language Aided Search (ATLAS).
A public demonstration instance of ACE, populated with fake patient data, is available at http://ace-demo.stanford.edu
The specification for the query language used in ACE is here
A tutorial on how to use the query language is here