Abstract: Willemijn J. Jansen, PhD; Rik Ossenkoppele, PhD; Betty M. Tijms, PhD; Anne M. Fagan, PhD; Oskar Hansson, MD, PhD; William E. Klunk, MD, PhD; Wiesje M. van der Flier, PhD; Victor L. Villemagne, MD, PhD; Giovanni B. Frisoni, MD; Adam S. Fleisher, MD, MAS; Alberto Lleó, MD, PhD; Mark A. Mintun, MD; Anders Wallin, MD, PhD; Sebastiaan Engelborghs, MD, PhD; Duk L. Na, MD, PhD; Gäel Chételat, PhD; José Luis Molinuevo, MD, PhD; Susan M. Landau, PhD; Niklas Mattsson, MD, PhD; Johannes Kornhuber, MD; Osama Sabri, MD, PhD; Christopher C. Rowe, MD, PhD; Lucilla Parnetti, MD, PhD; Julius Popp, MD; Tormod Fladby, MD, PhD; William J. Jagust, MD, PhD; Pauline Aalten, PhD; Dong Young Lee, MD, PhD; Rik Vandenberghe, MD, PhD; Catarina Resende de Oliveira, MD, PhD; Elisabeth Kapaki, MD, PhD; Lutz Froelich, MD, PhD; Adrian Ivanoiu, MD, PhD; Tomasz Gabryelewicz, MD, PhD; Marcel M. Verbeek, PhD; Páscual Sanchez-Juan, MD, PhD; Helmut Hildebrandt, PhD; Vincent Camus, MD, PhD; Marzena Zboch, MD, PhD; David J. Brooks, MD, PhD; Alexander Drzezga, MD, PhD; Juha O. Rinne, MD, PhD; Andrew Newberg, MD, PhD; Alexandre de Mendonça, MD, PhD; Marie Sarazin, MD, PhD; Gil D. Rabinovici, MD; Karine Madsen, MD, PhD; Milica G. Kramberger, MD, PhD; Agneta Nordberg, MD, PhD; Vincent Mok, MD; Barbara Mroczko, MD; David A. Wolk, MD; Philipp T. Meyer, MD, PhD; Magda Tsolaki, MD, PhD; Philip Scheltens, MD, PhD; Frans R. J. Verhey, MD, PhD; Pieter Jelle Visser, MD, PhD; Amyloid Biomarker Study Group; Dag Aarsland, MD, PhD; Daniel Alcolea, MD; Myriam Alexander, PhD; Ina S. Almdahl, MD; Steven E. Arnold, MD; Inês Baldeiras, PhD; Henryk Barthel, MD, PhD; Bart N.M. van Berckel, MD, PhD; Kaj Blennow, MD, PhD; Mark A. van Buchem, MD, PhD; Enrica Cavedo, PhD; Kewei Chen, PhD; Elena Chipi, PhD; Ann D. Cohen, PhD; Stefan Förster, MD, PhD; Juan Fortea, PhD; Kristian S. Frederiksen, MD, PhD; Yvonne Freund-Levi, MD, PhD; Olymbia Gkatzima, MSc; Mark Forrest Gordon, MD; Timo Grimmer, MD, PhD; Harald Hampel, MD, PhD; Lucrezia Hausner, MD, PhD; Sabine Hellwig, MD; Sanna-Kaisa Herukka, PhD; Peter Johannsen, MD, PhD; Aleksandra Klimkowicz-Mrowiec, MD, PhD; Sebastian Köhler, PhD; Norman Koglin, PhD; Koen van Laere, MD, PhD, DrSc; Mony de Leon, MD, PhD; Viviana Lisetti, MSc; Wolfgang Maier, MD, PhD; Jan Marcusson, MD, PhD; Olga Meulenbroek, PhD; Hanne M. Møllergård, PhD; John C. Morris, MD, PhD; Arto Nordlund, PhD; Gerald P. Novak, MD; George P. Paraskevas, MD, PhD; Gayan Perera, PhD; Oliver Peters, MD; Inez H. G. B. Ramakers, PhD; Lorena Rami, MSc; Eloy Rodríguez-Rodríguez, MD, PhD; Catherine M. Roe, PhD; Uros Rot, MD, PhD; Eckart Rüther, MD, PhD; Isabel Santana, MD, PhD; Johannes Schröder, MD, PhD; Sang W. Seo, MD, PhD; Hilkka Soininen, MD, PhD; Luiza Spiru, MD, PhD; Erik Stomrud, MD, PhD; Hanne Struyfs, MSc; Charlotte E. Teunissen, PhD; Stephanie J. B. Vos, PhD; Linda J. C. van Waalwijk van Doorn, MSc; Gunhild Waldemar, MD, DMsc; Åsa K. Wallin, MD, PhD; Jens Wiltfang, MD, PhD; Henrik Zetterberg, MD, PhD