1. Dana-Farber Cancer Institute, Boston, Massachusetts
2. Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
3. Instituto do Câncer do Estado de São Paulo, University of São Paulo and Vila Nova Star Hospital, Rede D’Or, São Paulo, Brazil
4. Department of Pathology, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
5. Hospital de Clinicas, University of Buenos Aires, Buenos Aires, Argentina
6. Department of Pathology and Laboratory Medicine, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
7. University of Milan, School of Medicine, Milan, Italy
8. Department of Pathology, Massachusetts General Hospital, Harvard Medical School, Boston
9. Instituto D’Or de Pesquisa e Ensino, São Paulo, Brazil
10. Department of Pathology and Cell Biology, Columbia University, New York, New York
11. Department of Pathology, The University of Texas MD Anderson Cancer Center, Houston
12. Department of Endocrine Neoplasia and Hormonal Disorders, The University of Texas MD Anderson Cancer Center, Houston
13. Department of Medicine, Massachusetts General Hospital, Harvard Medical School, Boston