combine a subset of elements in 2 JSON objects into a third using VB.NET

I have two JSON objects that are pulled from a URL's and want a separate JSON object built using efficient VB.net code that includes only the some of elements : [login to view URL],28324054,23843509 Output will include linked by pmid to uid pmid year is_research_article relative_citation_ratio nih_percentile is_clinical citation_count [login to view URL],28324054,23843509 Output will include linked by uid to pmid uid pubdate epubdate source authors in a concatuaded string in order ie "Hutchins BI, Klenke U, Wray S" volume issue pages issn essn pubtype fulljourbalname sortpubdate Please don't low bid and have me talk for awhile and then say you need more money. Bid what you feel it's worth. Describe to me your process. I already have code that will create a class and then sterilize it into an object. Dim jsonString = [login to view URL](output) I need fast code. If you can build the class efficiently then I'm interested. but to build it once and then loop it every time till you find a match then add and then loop. I need better.