ahlam1399
09-05-2016, 01:52 PM
Clinics are using stem cells to treat problems ranging from arthritis and torn tendons to paralysis and stroke. But researchers say there's ** evidence that the treatments work or are safe.
أكثر... (http://www.npr.org/sections/health-shots/2016/09/05/491372940/researchers-question-safety-value-of-untested-stem-cell-treatments?utm_medium=RSS&utm_campaign=news)
أكثر... (http://www.npr.org/sections/health-shots/2016/09/05/491372940/researchers-question-safety-value-of-untested-stem-cell-treatments?utm_medium=RSS&utm_campaign=news)