TY  - JOUR 
T1  - Brains and guts in human evolution: The Expensive Tissue Hypothesis
JO  - Brazilian Journal of Genetics
A1  - Aiello, Leslie C.
SN  - 0100-8455
UL  - 10.1590/S0100-84551997000100023
VL  - 20 
Y1  - 1997
PB  - Brasil 
ER  -