Money Stem cell companies sell hope with unproven medicine for COVID-19 and other incurable diseases June 22, 2020June 22, 2020 Brent Schrotenboer, USA TODAY Comments Off on Stem cell companies sell hope with unproven medicine for COVID-19 and other incurable diseases Stem cells have great potential for medicine, but some businesses just can't wait to cash in and are offering more dubious claims about treatments