public function postGuardar()
 {
     $pro = new AntecedenteLaboral();
     $pro->empresa = Request::input('empresa');
     $pro->activ_economica = Request::input('activ_economica');
     $pro->cargo = Request::input('cargo');
     $pro->fact_riesgo = Request::input('fact_riesgo');
     $pro->tiempo_exposicion = Request::input('tiempo_exposicion');
     $pro->niv_exposicion = Request::input('niv_exposicion');
     $pro->controles = Request::input('controles');
     $pro->epp = Request::input('epp');
     $pro->paciente_id = Request::input('paciente_id');
     $pro->save();
     return $pro;
 }