Replicating and expanding Blood volume deficit in postural orthostatic tachycardia syndrome assessed by semiautomated carbon monoxide rebreathing (2024, Clinical Autonomic Research) to include ME/CFS patients, not just pw"POTS".
Ideally: correlating with OI and other symptoms severity, FUNCAP and cerebral blood flow.
And please include all patiens with ME/CFS also the normal blood pressure and normal heart rate group.