Cluster 60: stem transplant cell autologous received prior patients asct therapy chemotherapy Cluster 393: hsct allogeneic prior autologous undergoing patients transplant patient previous days Cluster 599: transplant autologous stem cell allogeneic prior months eligible patients study Cluster 1370: stem transplant allogeneic cell prior patients received eligible history previous Cluster 1547: transplants stem cell prior organ allogeneic kind patients autologous transplant Cluster 1892: rescue stem cell high chemotherapy dose autologous requiring previous transplant Cluster 2031: transplant marrow bone stem cell autologous allogeneic prior rescue previous