Map of Clinics in US Marketing Unapproved Stem Cell Procedures (image) Cell Press Share Print E-Mail Caption This is a map of clinics in the United States marketing unapproved stem cell procedures. "Hotspot" cities are indicated with blue stars. Credit Leigh Turner and Paul Knoepfler Usage Restrictions Credit Required. Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.