1. Migration of surgical sponge at transvaginal hysterectomy into the bladder: a case report.;Kato;Hinyokika Kiyo-Acta (Urol Jap),1988
2. Pseudotumor formation in the bladder as a late complication of hip replacement.;Pang;J Urol,1997
3. MRI features of neurosurgical gossypiboma: report of two cases.;Mathew;Neuroradiology,1996