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?:definition
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The completed act of processing a material. EXAMPLE(S): freezing, thawing, spinning, embedding, dividing, aliquot, adding additives or growth factors OTHER NAME(S): product manipulation NOTE(S): Material process may be performed on any kind of material, such as a specimen, nanomaterial, or biologic. The result of the process may a similar or different kind of material, for instance a specimen may be the result of a specimen processing step (e.g., aliquot or division of a specimen), or alternatively a blood product has anticoagulants added to it to preserve the product. Other processing steps, such as adding growth factor to induce cell growth, may be performed on the blood product. Note that PerformedMaterialProcessStep inherits two associations that perhaps should be mutually exclusive - 1) the association between a PerformedProcedure and a Product that it uses, and 2) the association between an Activity and an ExperimentalActivityItem that it uses. Question for SMEs: Should this be made a constraint on this class, or even on a higher level superclass?
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