TY  - JOUR 
T1  - Adding autogenic drainage to chest physiotherapy after upper abdominal surgery: effect on blood gases and pulmonary complications prevention. Randomized controlled trial
JO  - Sao Paulo Medical Journal
A1  - Taha, Mona Mohamed
A1  - Draz, Ramy Salama
A1  - Gamal, Mohamed Mostafa
A1  - Ibrahim, Zizi Mohamed
SN  - 1516-3180
UL  - 10.1590/1516-3180.2021.0048.0904221
VL  - 139 
Y1  - 2021
PB  - Brasil 
ER  -