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string(19) "2017-01-30 19:23:38"
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string(90) "ESF 921, ESF AF and ESF SFM are serum-free media and no addition of serum (FBS) is needed."
["post_title"]=>
string(52) "Do I need to add FBS to Expression Systems’ media?"
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ESF 921, ESF AF and ESF SFM are serum-free media and no addition of serum (FBS) is needed.