1. Introductory Chapter: Advancements in the Management of Gallbladder Diseases
   Hesham Abdeldayem, 2017, Updates in Gallbladder Diseases CrossRef
2. Travel to a high volume hospital to undergo resection of gallbladder cancer: does it impact quality of care and long-term outcomes?
   Eliza W. Beal et al, 2020, HPB CrossRef