In metastasis research, it may sometimes be necessary to separate populations of tumor cells from a mixed cell population such as a tumor, peripheral blood, or bone marrow. In addition, the normal counterparts of populations of tumor cells can be separated to allow direct comparisons to be made (1).In recent years magnetic bead separation techniques have become increasingly popular for these purposes.

Impact byBIP!

	citations This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).	12
	popularity This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.	Average
	influence This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).	Average
	impulse This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.	Average