The experience of a tertiary referral center with laparoscopic pyelolithotomy for large renal stones during 18 years oleh Amir Hossein Kashi, Nasser Simforoosh, Akbar Nouralizadeh, Seyed Mohammad Ghasemi, Amirhossein Nayebzade, Milad Bonakdar Hashemi, Reza Valipour, Abbas Basiri, Ali Tabibi, Homayoun Zargar, Mehdi Dadpour, Hamidreza Rouientan, Behzad Narouie