A total of 155 women with recurrent urinary tract infections and dysfunctional voiding were included and randomly assigned to the following groups : uroflowmetry biofeedback ( group 1 ) , 1-adrenoceptor antagonists ( group 2 ) , uroflowmetry biofeedback combined with 1-adrenoceptor antagonists ( group 3 ) and no treatment ( group 4 ) .