TY  - JOUR 
T1  - Proposal Intensity Adequacy of Expiratory Effort and
                    Heart Rate Behavior During the Valsalva Maneuver in
                    Preadolescents
JO  - Arquivos Brasileiros de Cardiologia
A1  - Paschoal, Mario Augusto
A1  - Donato, Bruno de Sousa
A1  - Neves, Flávia Baroni
SN  - 0066-782X
UL  - 10.5935/abc.20140092
VL  - 103 
Y1  - 2014
PB  - Brasil 
ER  -