A genetically modified non-human mammal or cell characterised in that it does not comprise a nucleic acid sequence which itself encodes any endogenous immunoglobulin heavy chain constant region locus polypeptide.

 
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< Neural crest cells specific promoters; isolated neural crest cells; and methods of isolating and of using same

< Transgenic mammal carrying ganp gene transferred thereinto and utilization thereof

> Nanostructured casting of organic and bio-polymers in porous silicon templates

> Lead electrode incorporating extracellular matrix
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