https://annals-general-psychiatry.biomedcentral.com/articles/10.1186/s12991-017-0159-x
https://annals-general-psychiatry.biomedcentral.com/articles/10.1186/s12991-017-0161-3
https://annals-general-psychiatry.biomedcentral.com/articles/10.1186/s12991-017-0158-y
https://annals-general-psychiatry.biomedcentral.com/articles/10.1186/s12991-017-0160-4