Global 30-day morbidity and mortality of surgery for perforated peptic ulcer: GRACE study

Mohamed Abouelazayem, Rajesh Jain, Michael Wilson, Alessandro Martinino, Vignesh Balasubaramaniam, Walter L. Biffl, Federico Coccolini, Manel Riera, Himanshu Wadhawan, Ishaan Wazir, Bettahar Abderaouf, Daniil Abramov, Mustafa Abu Jayyab, Khayry Al‐Shami, Ahmad Alfarwan, Faris Alhajami, Akram Alkaseek, Ous Alozairi, Ahmed Siddique Ammar, Burak Atar, Gan-Erdene Baatarjav, Lovenish Bains, Ashraf Bakri, Nuru Bayramov, Rajesh Bhojwani, Gioia Brachini, Giacomo Calini, Michela Campanelli, Shi Yu Cheng, Charan Singh Choudhary, Sharfuddin Chowdhury, Elif Çolak, Jayanta Kumar Das, Surrendar Dawani, Turgut Dönmez, Ibrahim Elzayat, Sarnai Erdene, Tashaba Qaiser Faizi, Maximos Frountzas, Besma Gafsi, Paolo Gentileschi, Mert Güler, Gaurav Gupta, Nour Elhouda Harkati, Matthew P. Harris, Doaa Hasan, Omorodion Irowa, Salman Jafferi, Sumita Jain, Lai Jun Han, Satyanarayana Murthy Kandiboyina, Mehmetu Karabulut, Almu’atasim Khamees, Shahzeb Khan, Madiha Masood Khan, Cheng Jing Khaw, Michał Kisielewski, Mohamad Klib, Jurij Aleš Košir, Wiktor Jan Krawczyk, Giorgio Lisi, Jerry Godfrey Makama, Baila Maqbool, Cláudia Neves Marques, Serhat Meriç, Mateusz Przemysław Mietła, Alaa Mohamed Ads, Joshua Muhumuza, Francesk Mulita, Matanat Mustafayeva, Mohammed A. Omar, Taryel Omarov, Akshant Anil Pathak, Ratnadeep Paul, Giovanna Pavone, Mauro Podda, Novinth Kumar Raja Ram, Fatima Rauf, Sidra Rauf, Ahmed Mohamed Safy, Erdene Sandag, Ahmet Necati Şanlı, Adeela Z Siddiqui, Maria Sotiropoulou, Vikash Talib, Ci̇had Tatar, Anuroop Thota, Merve Tokoçin, Aditya Tolat, Petar Angelov Uchikov, José Ignacio Valenzuela, Sunil Kumar Venkatappa, Georgios‐Ioannis Verras, Ivan Vlahović, Dafer Zreeg, Victor Roth Cardoso, Georgios V. Gkoutos, Rishi Singhal, Kamal Mahawar, GRACE Study Collaborative Group