TY  - JOUR 
T1  - Importance of heart rate analysis in exercise tolerance test
JO  - Revista Brasileira de Medicina do Esporte
A1  - Herdy, Artur Haddad
A1  - Fay, Carlos Eduardo Schio
A1  - Bornschein, Christian
A1  - Stein, Ricardo
SN  - 1517-8692
UL  - 10.1590/S1517-86922003000400006
VL  - 9 
Y1  - 2003
PB  - Brasil 
ER  -