Proceedings of The National Academy of Sciences - Journal
::: tip Some topics require adding `topic/` to `topicPath` like [`/pnas/topic/app-math`](https://rsshub.app/pnas/topic/app-math) and some don't like [`/pnas/biophysics-and-computational-biology`](https://rsshub.app/pnas/biophysics-and-computational-biology) :::
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Category | WIRELESS | BROADBAND | VIDEO | GENERAL | IT | INDUSTRY RESOURCES | | -------- | --------- | --------- | ------- | -- | ------------------ | | mobile | internet | boardcast | general | it | industry-resources | ::: tip If `country` or `type` includes empty space, use `-` instead. For example, `United States` needs to be replaced with `United-States`, `White paper` needs to be replaced with `White-paper` Filters in [INDUSTRY RESOURCES](https://www.telecompaper.com/industry-resources) only provides `Content Type` which corresponds to `type`. `year` and `country` are not supported. :::