{HEAD ~ The method} 1, wherein said GlcNAc2Man3GlcNAc2Gal2NANA2 N glycan is present at a level from {TAIL ~ about 5 mole percent} to about 80 mole percent more than the next most predominant N linked glycan structure of said plurality of N linked glycans 
{ HEAD ~ The method } 1 , wherein said GlcNAc2Man3GlcNAc2Gal2NANA2 N glycan is present at a level from { TAIL ~ about 5 mole percent } to about 80 mole percent more than the next most predominant N linked glycan structure of said plurality of N linked glycans
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