1. Ten lessons for positive spacetime

   • Martin Riegler

   editorial 14 October 2021 Pages: 263 - 273

2. The role of Notch ligand, Delta-like ligand 4 (DLL4), in cancer angiogenesis—implications for therapy

   • Marlena Brzozowa-Zasada

   review Open access 26 April 2021 Pages: 274 - 280

   

3. Appendectomy and women’s reproductive outcomes: a review of the literature

   • Lucia Merlino
   • Alessandra Chiné
   • Maria Grazia Piccioni

   Review Open access 20 April 2021 Pages: 281 - 286

   

4. Programmed death ligand 2 expression plays a limited role in adenocarcinomas of the gastroesophageal junction after preoperative chemotherapy

   • Gerd Jomrich
   • Dagmar Kollmann
   • Sebastian F. Schoppmann

   original article Open access 05 May 2021 Pages: 287 - 293

   

5. Safety and feasibility of single-incision laparoscopic totally extraperitoneal inguinal hernia repair: a retrospective comparative analysis of 163 patients

   • Jin Won Lee
   • Eun Young Kim
   • Hae Sung Kim

   original article 07 July 2020 Pages: 294 - 298

   

6. Revisional surgery for recurrent benign bile duct strictures

   • Timucin Erol
   • Ahmet Dogrul
   • Osman Abbasoglu

   original article 13 October 2020 Pages: 299 - 304

   

7. Seeking outpatient management of right-sided diverticulitis

   • María Savoie-Hontoria
   • Rafael José Orti-Rodríguez
   • Manuel Ángel Barrera Gómez

   original article 09 April 2021 Pages: 305 - 310

   

8. Porcelain gallbladder and its relationship to cancer

   • Natale Calomino
   • Maximilian Leonardo Philip Federico Scheiterle
   • Daniele Marrelli

   original article Open access 27 April 2021 Pages: 311 - 316

   

9. Towards a zero percent anastomotic leak rate using a defined risk reduction strategy

   • Sergei Bedrikovetski
   • Nagendra N. Dudi-Venkata
   • Tarik Sammour

   original article 14 October 2021 Pages: 317 - 322

   

10. Comparing predicted and observed morbidity and mortality between emergency laparotomies conducted during the day and overnight at a district general hospital

    • James Livingstone
    • Md Mahfooz Buksh
    • Kumaran Ratnasingham

    original article 13 October 2021 Pages: 323 - 326

    

11. How the COVID-19 pandemic has enforced a new way of surgical training

    • Ankit Rai
    • Farhanul Huda
    • Somprakas Basu

    letter to the editor 30 April 2021 Pages: 327 - 328

12. Author self-citation policies, the influence on journals’ impact factors, and self-citation rate in general surgery

    • Filippo Sanfilippo
    • Marinella Astuto
    • Alessandro Cappellani

    letter to the editor 26 July 2021 Pages: 329 - 334