There is still an oncology extension page on the documentation. This seems to be quite outdated, referring e.g. to v6.1. As af as I know, it is not referenced to from other parts of the documentation, but recently I saw someone referring to it.
I would propose to delete the docs/oncology.html file from the repository:
https://ohdsi.github.io/CommonDataModel/oncology.html

There is still an oncology extension page on the documentation. This seems to be quite outdated, referring e.g. to v6.1. As af as I know, it is not referenced to from other parts of the documentation, but recently I saw someone referring to it.
I would propose to delete the docs/oncology.html file from the repository:
https://ohdsi.github.io/CommonDataModel/oncology.html

CommonDataModel/docs/oncology.html
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