April 2011 - Dr. Mark Zylka’s review on pain-relieving prospects for adenosine and ectonucleotidases is the cover article in the April 2011 issue of Trends in Molecular Medicine. The artwork was generated by Eric Knisley (www.silent-k.net), a local artist who has also done work for UNC's endeavors magazine, most recently in a series on bacteria in the body.