1) Geraghty R, Jones P and Somani BK : Worldwide Trends of Urinary Stone Disease Treatment over the last two Decades : A Systematic Review. J Endourol 31 : 547─556, 2017
2) Jackman SV, Docimo SG, Cadeddu JA, et al : The “mini-perc” technique : a less invasive alternative to percutaneous nephrolithotomy. World J Urol 16 : 371─374, 1998
3) Monga M and Oglevie S : Minipercutaneous nephrolithotomy. J Endourol 14 : 419─421, 2000
4) Desai J, Zeng G, Zhao Z, et al : A novel technique of ultra-mini-percutaneous nephrolithotomy : introduction and an initial experience for treatment of upper urinary calculi less than 2 cm. Biomed Res Int 2013 : 490793, 2013
5) Schoenthaler M, Wilhelm K, Hein S, et al : Ultra-mini PCNL versus flexible ureteroscopy : a matched analysis of treatment costs (endoscopes and disposables) in patients with renal stones 10-20 mm. World J Urol 33 : 1601─1605, 2015
6) Sabnis RB, Ganesamoni R, Ganpule AP, et al : Current role of microperc in the management of small renal calculi. Indian J Urol 29 : 214─218, 2013
7) Zeng G, Wan S, Zhao Z, et al : Super-mini percutaneous nephrolithotomy (SMP) : a new concept in technique and instrumentation. BJU Int 117 : 655─661, 2016
8) Desai MR, Sharma R, Mishra S, et al : Single-step percutaneous nephrolithotomy (microperc): the initial clinical report. J Urol 186 : 140─145, 2011
9) Lu Y, Ping JG, Zhao XJ, et al : Randomized prospective trial of tubeless versus conventional minimally invasive percutaneous nephrolithotomy. World J Urol 31 : 1303─1307, 2013
10) Cheng F, Yu W, Zhang X, et al : Minimally invasive tract in percutaneous nephrolithotomy for renal stones. J Endourol 24 : 1579─1582, 2010
11) Giusti G, Piccinelli A, Taverna G, et al : Miniperc? No, thank you! Eur Urol 51 : 810─814, 2007
12) Wright A, Rukin N, Smith D, et al : ‘Mini, ultra, micro’ - nomenclature and cost of these new minimally invasive percutaneous nephrolithotomy (PCNL) techniques. Ther Adv Urol 8 : 142─146, 2016
13) Türk C, Petřík A, Sarica K, et al : EAU Guidelines on Interventional Treatment for Urolithiasis. Eur Urol 69 : 475─482, 2016
14) 日本泌尿器科学会, 日本泌尿器内視鏡学会, 日本尿路結石症学会 (編) : 尿路結石症診療ガイドライン2013年版. pp33─36, 金原出版, 東京, 2013
15) Bader MJ, Gratzke C, Seitz M, et al : The “all-seeing needle” : initial results of an optical puncture system confirming access in percutaneous nephrolithotomy. Eur Urol 59 : 1054─1059, 2011
16) Zhao Y, Zhou J, Shi Z, et al : A Report on Safety Analysis of Tubeless Percutaneous Nephrolithotomy. Cell Biochem Biophys 72 : 481─483, 2015
17) Kamal W, Kallidonis P, Kyriazis I, et al : Minituriazed percutaneous nephrolithotomy : what does it mean? Urolithiasis 44 : 195─201, 2016
18) Ganpule AP, Bhattu AS and Desai M : PCNL in the twenty-first century : role of Microperc, Miniperc, and Ultraminiperc. World J Urol 33 : 235─240, 2015
19) 公文裕巳, 和田耕一郎 : SL-4理想のPNLを目指して : 超細径HDIG一体型穿刺針と内視鏡システムの開発. Jpn J Endourol 26 : 117, 2013
20) Tanimoto R, Wada K, Sasaki K, et al : Development of a novel “optical puncture needle” using ultrathin High Definition Image Guide system for percutaneous nephrolithotomy. J Endourol., Part B : Videourol 2017 (https://doi.org/10.1089/vid.2017.0022)