TY  - JOUR 
T1  - The challenge of new directions
JO  - Archives of Endocrinology and Metabolism
A1  - Bronstein, Marcello D.
SN  - 2359-3997
UL  - 10.1590/2359-3997000000002
VL  - 59 
Y1  - 2015
PB  - Brasil 
ER  -