Potential conflict of interest:
Disclosure forms provided by the authors are available with the full text of this article at www.informahealthcare.com/lal
Supported by FAPESP (process no. 2011/51616-6 and 2011/20135-2) and CNPq.
Supplementary materials are available on line Supplementary Information, Supplementary Figs. 1–2 and Supplementary Tables I–V