<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://ghk.h-cdn.co/assets/cm/15/12/55093b20c02ff-er-or-urgent-care-chart-3.jpg>
<http://www.goodhousekeeping.com/health/advice/a25217/when-to-go-to-urgent-care/>