TY  - JOUR 
T1  - Sperm analysis of the vas deferens fluid after a long interval of unilateral percutaneous epididymal sperm aspiration in vasectomized patients
JO  - International braz j urol
A1  - Lorenzini, Fernando
A1  - Zanchet, Eduardo
A1  - Lorenzini, Mariana
SN  - 1677-5538
UL  - 10.1590/S1677-5538.IBJU.2013.05.15
VL  - 39 
Y1  - 2013
PB  - Brasil 
ER  -