Funding for this research was provided by:
Fundação de Amparo à Pesquisa do Estado de São Paulo (09/16919-8)
Conselho Nacional de Desenvolvimento Científico e Tecnológico (301580/2013-8)
Text and Data Mining valid from 2018-05-08
Received: 10 September 2017
Accepted: 29 April 2018
First Online: 8 May 2018
Ethics approval and consent to participate
: The study was approved by the review board for the human ethics committee of Sao Paulo University (CAPPesq-FMUSP n° 0623/09). The study is retrospective and used medical records and archived material from the Department of Pathology of Sao Paulo University Medical School.
: The authors declare that they have no competing interests.
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