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2. Antenatal hydronephrosis with postnatal resolution: how long are postnatal studies warranted?;Gatti;Urology,2001
3. Pelvi-ureteric junction obstruction by crossing vessels: clinical and imaging features;Rigas;BJU Int,2003
4. Natural history of prenatally diagnosed hydronephrosis: possible recurrence of dilatation after spontaneous reduction, in cases with pelvic diameter larger than 20 mms, recommends long term follow-up;Calisti;Pediatr Med Surg,2004
5. Late recurrence of symptomatic hydronephrosis in patients with prenatally detected hydronephrosis and spontaneous improvement;Matsui;J Urol,2008