The chronic fatigue syndrome--one entity or many?
Swartz
M N
MN
D005221:Fatigue / Q000209:etiology*; D006566:Herpesviridae Infections / Q000150:complications; D004854:Herpesvirus 4, Human; D006801:Humans; D007239:Infections / Q000150:complications; D013577:Syndrome; D014777:Virus Diseases / Q000150:complications