title: Pitfalls in diagnosis of unexplained symptoms.
mesh_terms: D000293:Adolescent; D006528:Carcinoma, Hepatocellular / Q000175:diagnosis; D002648:Child; D003937:Diagnosis, Differential; D006801:Humans; D008113:Liver Neoplasms / Q000175:diagnosis; D008297:Male; D011602:Psychophysiologic Disorders / Q000175:diagnosis*; D011658:Pulmonary Fibrosis / Q000175:diagnosis