https://en.wikipedia.org/wiki/Diagnostic_and_Statistical_Manual_of_Mental_Disorders
https://slate.com/technology/2013/04/diagnostic-and-statistical-manual-fifth-edition-why-will-half-the-u-s-population-have-a-mental-illness.html
https://www.huffpost.com/entry/dsm-5-unveiled-changes-disorders_n_3290212?ec_carp=2623729109685477689
https://www.researchgate.net/post/The_DSM-IV_lists_approximately_297_disorders_How_many_disorders_are_listed_in_the_DSM-5
https://online.csp.edu/blog/psychology/history-of-mental-illness-treatment
https://www.nami.org/learn-more/mental-health-by-the-numbers
https://www.futurity.org/globally-1-in-13-suffers-from-anxiety/
https://www.tennessean.com/story/news/2018/06/25/most-common-mental-illnesses-united-states/714419002/
https://www.addrc.org/adhd-numbers-facts-statistics-and-you/