Studien und Publikationen 5. Mai 20256. April 2025 Diagnostik ICD – https://icd.who.int/browse10/2019/en#/G93.3 Therapie IHHT – Doehner et al., 2024 – IHHT improves fatigue and mitochondrial function Infustionstherapie – Effects of intermittent intravenous saline infusions in patients with medication-refractory postural tachycardia syndrome