«Networking for rare diseases: a necessity for Europe». Bundesgesundheitsblatt, Gesundheitsforschung, Gesundheitsschutz50 (12): 1477–83. December 2007. doi:10.1007/s00103-007-0381-9. PMID18026888.
«Networking for rare diseases: a necessity for Europe». Bundesgesundheitsblatt, Gesundheitsforschung, Gesundheitsschutz50 (12): 1477–83. December 2007. doi:10.1007/s00103-007-0381-9. PMID18026888.