added exception checking for when trying to access the text field for articles authors and titles. If the text can not be accessed empty strings are returned. Further error handling is needed to notify the user that something has gone wrong.
added exception checking for when trying to access the text field for articles authors and titles. If the text can not be accessed empty strings are returned. Further error handling is needed to notify the user that something has gone wrong.

allnightdiner/pubmed_central_request,allnightdiner/pubmed_central_request,allnightdiner/pubmed_central_request