https://annals-general-psychiatry.biomedcentral.com/articles/10.1186/s12991-017-0169-8
https://annals-general-psychiatry.biomedcentral.com/articles/10.1186/s12991-017-0170-2
https://annals-general-psychiatry.biomedcentral.com/articles/10.1186/s12991-017-0168-9
https://annals-general-psychiatry.biomedcentral.com/articles/10.1186/s12991-017-0167-x