Not really, it is only concerned with the physical symptoms a patient presents with. (ericbakker.com)
Symptoms can be very similar to the chronic fatigue syndrome's symptoms patients experience and up to 70 % of them suffer from both conditions. (holtorfmed.com)
To diagnose patients, «you go not by what's inside the brain or what's inside the gene, but by what symptoms the patient is showing,» she says. (sciencemag.org)