%0 Journal Article %T The German National Action League for people with rare diseases: translating the three tiers center system into active co-operation, a one center experience %A A. Ziagaki %A U. Pl£¿ckinger %J Archive of "Orphanet Journal of Rare Diseases". %D 2019 %R 10.1186/s13023-019-1130-5 %X Participant %K Rare diseases %K National action plan %K Co-operation %U https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6598233/