1. CHLN-Hospital Santa Maria, IMM, Unversidade de Lisboa, Lisbon, Portugal;
2. Unidade Corino de Andrade, Hospital de Santo António, Centro Hospitalar Universitário do Porto, Porto, Portugal;
3. Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Bologna, Italy;
4. Neurology Department, Neuromuscular Unit, Istanbul Faculty of Medicine, Istanbul University, Istanbul, Turkey;
5. IRCCS Fondazione Policlinico San Matteo, Amyloidosis Research and Treatment Center, Pavia, Italy;
6. Department of Neurology, Hospital Clinico San Carlos IdiSSC, Madrid, Spain;
7. Department of Ophthalmology, Bicêtre Hospital Université Paris-Sud, Le Kremlin-Bicêtre, France APHP, DHU Sight Restore, French Reference centre for H-ATTR (NNERF), French Reference Network for Rare Ophthalmic Diseases (OPHTARA), Le Kremlin-Bicêtre, France