Create a document that includes:
When it comes to organizing your documents, keep it simple.
Older, C. E., Diesel, A., Patterson, A. P., Meason-Smith, C., Johnson, T. J., Mansell, J., & ... Rodrigues Hoffmann, A. (2017). The feline skin microbiota: The bacteria inhabiting the skin of healthy and allergic cats. Plos ONE, 12(6), 1-18. doi:10.1371/journal.pone.0178555
I would rename it older_felineskinmicrobiota.pdf.
Considering using a table to organize your study summaries and create a synthesis matrix. A synthesis matrix lets you track themes across multiple sources.
Alternately, you can create custom fields in your citation manager of choice to keep track of this information. Request a training session with a librarian to learn more about doing this.