<?xml version="1.0" encoding="utf-8"?>
<pmcids response-date="2026-11-02 12:05:23" status="ok"><request format="xml" ids="PMC3531190" idtype="pmcid" showaiid="no" versions="no"><echo>email=my_email%40example.com&amp;ids=PMC3531190&amp;tool=my_tool</echo></request><record doi="10.1093/nar/gks1195" pmcid="PMC3531190" pmid="23193287" requested-id="PMC3531190"></record></pmcids>