https://annals-general-psychiatry.biomedcentral.com/articles/10.1186/s12991-016-0116-0
https://annals-general-psychiatry.biomedcentral.com/articles/10.1186/s12991-016-0115-1
https://annals-general-psychiatry.biomedcentral.com/articles/10.1186/s12991-016-0114-2