Hi, thanks for the explanation, I get to understand the code better. Sorry, I have another question as I want to use this data structure in future. Is it possible to use a loop to traverse the whole proteinLU hash of hash table? I spent sometimes trying to do it, but I could not successfully traverse it. Thanks for your help!

In reply to Re^5: Tag protein names in sentences by sinlam
in thread Tag protein names in sentences by sinlam

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