changed method to methods and added args

[esteininger]

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[gijswobben]

Hi Ethan,
Thanks for contributing! I hope you don't mind but I've rewritten the code of your pull requests a bit. I saw, for example, that you use .find instead of .findall, which means you're missing part of the abstracts. I also had some request for other fields so I added them in a single pull request.
Kind regards,
Gijs