The encapsulated ES cells are capable of differentiating within said microenvironment into hepatocyte lineage cells in {HEAD ~ the absence} of embryoid body intermediates or {TAIL ~ growth factor supplementation} 
The encapsulated ES cells are capable of differentiating within said microenvironment into hepatocyte lineage cells in { HEAD ~ the absence } of embryoid body intermediates or { TAIL ~ growth factor supplementation }
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