That's clearly too many results to go through, so we're going to narrow down using our additional keywords. If you keep each concept in its own separate search box, you can create more focused searches. Click on the link to Modify search above your search results, and in the second search box, enter: anxiety and click on 'Search'. Which is closest to the number of sources in your results?

$900$

$4,500$

$35,000$

$953,000$