title: The challenge of unexplained symptoms.
mesh_terms: D001291:Attitude of Health Personnel; D003937:Diagnosis, Differential; D004715:Endometriosis / Q000175:diagnosis*; D005260:Female; D006801:Humans; D013001:Somatoform Disorders / Q000175:diagnosis; D019966:Substance-Related Disorders / Q000175:diagnosis