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By P. Than smokingSmokeless tobacco products, as used in Europe and North America do not seem to increase the risk of cancer. A large meta-analysis in the open access journal BMC Medicine has been published, has shown that snuff used in Scandinavia has no discernible effect on the risk of various cancers. Products used in the past in the U.S., can increase the risk, but an effect that exists now probably quite small.Reprogrammed supply sources of adult stem like able to work embryonal stem cells, are a sought an important an alternative to using from embryos for the production of patients – specific cell lines for studying diseases and regenerate tissue.

Some doctors are concerned that animal products animal origin feeder cells, risk from cross nuclear species pollution, so that the removal this move fat do deduced iPS cells have an attractive option the development of human treatment , the researchers said in a press statement.