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Pooling Implementation
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The tab2mage importer can now runs in a pooled or non- pooled state.

A pooling protocol - Protocol[pool] must be specified in the tab2mage spreadsheet for experiments that involve pooling, otherwise the importer would run in a non-pool state.

One stage pooling - > biosource to sample, sample to extract or extract to labeled extract is fully supported

Multiple stage pooling: biosource to sample and sample to extract supported.  Note that Multi stage pooling involving labeled extract is not supported.

For usability and consistency on the biomaterial user interface, do not run the same experiment twice. An imported experiment (with raw data and meta-data) that involves pooling may only be loaded once.