Link to the actual paper: http://psycnet.apa.org/fulltext/2018-07714-001.pdf
https://www1.bps.org.uk/networks-and-communities/member-micr...
First response from 2014: https://www.nationalelfservice.net/publication-types/report/...
Newer response to updated document from 2017: https://www.nationalelfservice.net/mental-health/psychosis/u...
It's a bit worrying that they get so much wrong.