Stem cell clinics on trial

Clinics offering autologous stem cell treatments have proliferated in recent years.

But critics argue these treatments are experimental and potentially risky, and their regulation is long overdue.

Stem cell science has captured the public's imagination in recent times. The possibility that we can replace or repair damaged cells seems an obvious and relatively straightforward step. In some cases it is. People with leukaemia and other diseases of the blood system have benefited from blood stem cell

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