Funding for this research was provided by:
Fundação de Amparo à Pesquisa do Estado de São Paulo (2012/23652-0)
Received: 8 August 2018
Accepted: 25 September 2018
First Online: 4 February 2019
Ethics approval and consent to participate
: The present work was approved by institutional review boards of the A.C.Camargo Cancer Center and the Faculdade de Medicina da Universidade de Sao Paulo (Registration no. 1816/13 and 1,517,306, respectively).
: All of the authors have approved the manuscript in its present form and have signed the consent form.
: The authors declare that they have no competing interests.
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