Acute Appendicitis

• Wellspan Health York Hospital — York, Pennsylvania, United States

• National University Hospital — Singapore

• King Edward Medical University — Lahore, Punjab Province, Pakistan

Not specified

• Policlinico San Pietro — Ponte San Pietro, BG, Italy
• Ospedale Manzoni — Lecco, LC, Italy
• ASST Monza — Monza, MB, Italy
• Ospedale San Raffaele — Milan, Mi, Italy

• Addenbrooke's University Hospital — Cambridge, Cambridgeshire, United Kingdom

• University Hospital Ostrava — Ostrava, Moravian-Silesian Region, Czechia

• Ankara Medical Park Hastanesi — Ankara, Turkey (Türkiye)

• University Clinic Centre of Medical University of Warsaw — Warsaw, Poland

• General and Emergency Surgery Unit, San Marcellino Hospital — Muravera, Cagliari, Italy
• Department of General Surgery, San Giovanni Addolorata Hospital — Rome, Italt, Italy
• General Surgery Unit, Nostra Signora Della Mercede Hospita, Lanusei — Lanusei, Ogliastra, Italy
• General and Endocrine Surgical Unit, Cagliari University Hospital, Cagliari — Cagliari, Italy