FernströmI, JohanssonB. Percutaneous pyelolithotomy. A new extraction technique. Scand J Urol Nephrol, 1976; 10:257–259.
2.
TurkC, PetrikA, SaricaK, et al.EAU Guidelines on Urolithiasis. Eur Assoc Urol, 2016:1–82.
3.
TepelerA, SaricaK. Standard, mini, ultra-mini, and micro percutaneous nephrolithotomy: What is next? A novel labeling system for percutaneous nephrolithotomy according to the size of the access sheath used during procedure. Urolithiasis, 2013; 41:367–368.
