Two patients died from stem cell treatments in China and Japan . An independent group says the deaths are not due to the procedure . The death of a 73-year-old former surgeon , who died on the same day he was treated in Japan , `` was due to a pre-existing blood clot that traveled to the lungs , and may have been precipitated by the procedure used to infuse the stem cells , or less probably , from a clot formed by the cells , '' according to the ICMS findings published on the group 's website . Such procedures are not permitted in South Korea .
Two patients died from stem cell treatments in China and Japan . An independent group says the deaths are not due to the procedure . Such procedures are not permitted in South Korea .