Significant progress has been made in working out how to grow blood stem cells in a laboratory.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/scientists-edge-closer-growing-blood-stem-cells-lab
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/international-business-times
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/health
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/medical-research
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/scientists
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/blood
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/health-care