| http://www.w3.org/ns/prov#value | - The most commonly used serum is fetal bovine serum (SFB) which is composed of a mixture of several substances in undefined concentrations as hormones, growth factors, vitamins, and other unknown substances [1].The use of serum in culture media in research is associated with several problems such as limited availability of good fetal bovine serum suppliers, batch-to-batch variation causing inconsis
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