rentrez

问题 My overall goal is to build a co-author network graph. I have a list of PubMed ID's and these are the only publications I am interested in for the graphing of the co-author network. I can't figure out how to get both the Author names and respective affiliations together in my query using rentrez. I can get both information but my list of affiliations is about 300 less than my author list so obviously some did not provide affiliations but I can't figure out who. Any way to search for Author

问题 tl;dr: What is different about an esummary list produced by rentrez , and why do said lists stop working with other rentrez functions after they are merged using append() ? I am accessing Pubmed using rentrez . I am able to search for publications and download esummaries without problem. However, there must be something special about an esummary list that I do not understand, because things fall apart when I used append() to try to merge lists. I have not been able to figure out what that