BMG = Bundesministerium für Gesundheit (Federal Ministry of Health) — the German government ministry responsible for public health.
NUM = Netzwerk Universitätsmedizin (Network University Medicine) — a collaborative network of German university hospitals and research institutes formed during the COVID-19 pandemic.
NAKO Gesundheitsstudie = NAKO Gesundheitsstudie (German National Cohort Health Study) — a large population-based health study in Germany to investigate causes and preventative measures for major diseases.
BIH = Berlin Institute of Health — a research institute in Berlin focusing on translational medicine (bridging research and clinical application).
DZG = Deutsches Zentrum für Gesundheitsforschung (German Centre for Health Research)
Helmholtz Zentren = Helmholtz‑Gemeinschaft Deutscher Forschungszentren centres — Germany’s large federal research institutions covering many fields of science.
Leibniz Institute = German research institutions organised under the Leibniz Association, covering a wide array of scientific disciplines.
NKSG = Nationale Klinische Studiengruppe (NKSG) — described as Germany’s top scientific expertise for the diseases in question, here specifically focusing on clinical trials for ME/CFS and Post-COVID-19 syndrome.