A systematic literature review of evidence-based clinical practice for rare diseases: what are the perceived and real barriers for improving the evidence and how can they be overco... oleh Ana Rath, Valérie Salamon, Sandra Peixoto, Virginie Hivert, Martine Laville, Berenice Segrestin, Edmund A. M. Neugebauer, Michaela Eikermann, Vittorio Bertele, Silvio Garattini, Jørn Wetterslev, Rita Banzi, Janus C. Jakobsen, Snezana Djurisic, Christine Kubiak, Jacques Demotes-Mainard, Christian Gluud