Stefano DI Bari 1 , Giuseppe Stella 1 , Mattia Benedetti 1 , Michele Talso 2 3 , Alberto Saita 2 4 , Carlo Zaraca 1 , Riccardo Ferrari 1 , Pietro Acquati 2 5 , Riccardo Lombardo 2 6 , Stefania Ferretti 7 , Stefano Puliatti 1 , Luigi Cormio 2 8 , Salvatore Micali 9 2
1Department of Urology, University of Modena and Reggio Emilia, Modena, Italy.
2SIU working group: Urinary Stones and Endourology, Rome, Italy.
3Department of Urology, ASST Fatebenefratelli-Sacco, Luigi Sacco University Hospital, Milan, Italy.
4Department of Urology, IRCCS Humanitas Research Hospital, Rozzano, Milan, Italy.
5Department of Urology, IRCCS Policlinico San Donato, Milan, Italy.
6Sant'Andrea Hospital, Sapienza University, Rome, Italy.
7Department of Urology, University Hospital of Modena, Modena, Italy.
8Department of Urology, University of Foggia, Foggia, Italy.
9Department of Urology, University of Modena and Reggio Emilia, Modena, Italy

Vincent De Coninck # 1 2 , Xavier Mortiers # 3 , Laura Hendrickx 3 , Stefan De Wachter 3 , Olivier Traxer 4 5 , Etienne X Keller 6 7
1Department of Urology, AZ Klina, Augustijnslei 100, 2930, Brasschaat, Belgium.
2Young Academic Urologists (YAU), Urolithiasis & Endourology Working Party, 6846, Arnhem, The Netherlands.
3Department of Medicine, University of Antwerp, Campus Drie Eiken, Gebouw S, Universiteitsplein 1, 2610, Wilrijk, Belgium.
4GRC N°20, Groupe de Recherche Clinique Sur La Lithiase Urinaire, Hôpital Tenon, Sorbonne Université, Paris, France.
5Service d'Urologie, Assistance-Publique Hôpitaux de Paris, Hôpital Tenon, Sorbonne Université, Paris, France.
6Young Academic Urologists (YAU), Urolithiasis & Endourology Working Party, 6846, Arnhem, The Netherlands.
7Department of Urology, University Hospital Zurich, University of Zurich, Zurich, Switzerland.
#Contributed equally.

Daniele Castellani 1 , Carlo Brocca 1 , Demetra Fuligni 1 , Carlo Giulioni 1 , Angelo Antezza 1 , Angelo Cormio 1 , Arianna Rubino 1 , Lucia Pitoni 1 , Virgilio De Stefano 1 , Giulio Milanese 1 , Luigi Cormio 2 3 , Bhaskar Kumar Somani 4 , Vineet Gauhar 5 , Andrea Benedetto Galosi 1
1Urology Unit, Azienda Ospedaliero-Universitaria delle Marche, Università Politecnica delle Marche, Ancona, Italy.
2Department of Urology and Renal Transplantation, Policlinico Riuniti, University of Foggia, Foggia, Italy.
3Department of Urology, Bonomo Teaching Hospital, Andria, Italy.
4Department of Urology, University Hospitals Southampton, NHS Trust, Southampton, United Kingdom.
5Department of Urology, Ng Teng Fong General Hospital, Singapore, Singapore.

Pilar Bahilo-Mateu 1 , Alberto Budia-Alba 1 2
1Lithotripsy and Endourology Unit, La Fe University and Polytechnic Hospital, Valencia, Spain.
2Lithotripsy and Endourology Unit, Urology Department, La Fe University and Polytechnic Hospital, Valencia, Spain.

Dongmei Liu # 1 , Junlong Liu # 1 , Zheming Li # 1 , Chengshan Ge 2 , Hongqiang Guo 2 , Shiyu Song 3 , Zhenhua Li 4 , Song Bai 5
1Department of Urology, Shengjing Hospital of China Medical University, 36 Sanhao Street, Shenyang, Liaoning, 110004, People's Republic of China.
2The Fifth Hospital of Liaoyang City, Liaoyang, China.
3Luhe Hospital of Yingkou City, Yingkou, China.
4Department of Urology, Shengjing Hospital of China Medical University, 36 Sanhao Street, Shenyang, Liaoning, 110004, People's Republic of China.
5Department of Urology, Shengjing Hospital of China Medical University, 36 Sanhao Street, Shenyang, Liaoning, 110004, People's Republic of China.
#Contributed equally.