TY  - JOUR 
T1  - Analysis of direct costs of anesthesia-related materials between spinal and venous anesthesia with propofol associated with local perianal block in hemorrhoidectomy
JO  - Journal of Coloproctology (Rio de Janeiro)
A1  - Kotze, Paulo Gustavo
A1  - Froehner Junior, Ilario
A1  - Freitas, Cristiano Denoni
A1  - Diniz, Fábio
A1  - Steckert-Filho, Álvaro
SN  - 2237-9363
UL  - 10.1590/S2237-93632011000300007
VL  - 31 
Y1  - 2011
PB  - Brasil 
ER  -