Working with stem cells

December 11, 2010 | 3:10 p.m. CST

* CORRECTION: An earlier caption misidentified Willkie as a doctor of veterinary medicine.

Katherine Wilkie* watches veterinary technician Billy Inskeep extract waste fluid from a test tube containing a dog’s stem cells that had just come out of the centrifuge on Friday. The stem cells will be injected into the four-year-old Labrador Retriever Ellie, who suffers from painful joints, as part of a new procedure in veterinary medicine.