TY  - JOUR 
T1  - Valsalva maneuver in detection of right-to-left shunt by transcranial Doppler
JO  - Arquivos de Neuro-Psiquiatria
A1  - Paliwal, Prakash R.
A1  - Sharma, Vijay K.
SN  - 0004-282X
UL  - 10.1590/S0004-282X2010000600034
VL  - 68 
Y1  - 2010
PB  - Brasil 
ER  -