http://www.sciencemag.org/news/2016/11/ ... -americans Science Magazine European diseases left a genetic mark on Native Americans http://www.sciencemag.org/news/2016/11/ ... -americans http://www.sciencemag.org/news/2016/11/ ... -americans http://www.sciencemag.org/news/2016/11/ ... -americans Science News European diseases left a genetic mark on Native Americans Science News http://www.sciencemag.org/news/2016/11/ ... -americans http://www.sciencemag.org/news/2016/11/ ... -americans