Because events are repeated in angular-fullcalendar

We are developing an application to schedule medical appointments using full calendar and angularjs

We generate a code (render) to show us in the form of events the appointments that were saved, but when browsing the calendar, either in the Month, Week or Day views, I duplicate these events.

function  eventScroll(){
    vm.eventSourcees = [];
    var datosCalendario;
    if (vm.fechaInicio !== null && vm.fechaFin !== null){
        Horarios.queryByFechas({
            fechaInicio: $filter('date')(vm.startDate, 'yyyy-MM-dd', '-0500'),
            fechaFin: $filter('date')(vm.endDate, 'yyyy-MM-dd', '-0500')
        }).promise.then(function(data){
            for(var i = 0; i < data.length; i++){
                vm.eventSource.push({
                    id: data[i].idHorario,
                    title: data[i].descCita,
                    start: new DAte(data[i].fechaHorario),
                    allDay: false
                 });
        }).catch(function (error){
              console.log(error);
        });
    }
}
function renderView(view){
   vm.startDate = new DAte(view.start);
   vm.endDate = new DAte(view.end);
   console.log('render');
   eventScroll();
}