1. Medically unexplained physical symptoms in emergency medicine;Stephenson DT;Emerg Med J,2006
2. Lipowski ZJ. Somatization: a borderland between medicine and psychiatry. CMAJ: Canadian Medical Association journal = journal de l'Association medicale canadienne. 1986;135(6):609–14. PubMed PMID: 3489512.
3. Somatoform disorders in general practice: prevalence, functional impairment and comorbidity with anxiety and depressive disorders;Waal MW;Br J Psychiatry
4. Roenneberg C, Sattel H, Schaefert R, Henningsen P, Hausteiner-Wiehle C. Functional Somatic Symptoms. Deutsches Aerzteblatt International. 2019;116(33/34):553 – 60. PubMed PMID: 138763284. Language: English. Entry Date: In Process. Revision Date: 20200803. Publication Type: Article. Journal Subset: Biomedical.
5. Nimnuan C, Hotopf M, Wessely S. Medically unexplained symptoms: an epidemiological study in seven specialities.J Psychosom Res. 2001Jul;51(1):361–7. PubMed PMID: 11448704. Epub 2001/07/13. eng.