{Reference Type}: Case Reports {Title}: A case of IgG4-related cholecystitis diagnosed by transpapillary gallbladder biopsy using a novel device delivery system. {Author}: Kawakami Y;Kameyama N;Hirobe Y;Masaki Y;Murota A;Sugita S;Nakase H; {Journal}: Endoscopy {Volume}: 55 {Issue}: 0 {Year}: 2023 12 {Factor}: 9.776 {DOI}: 10.1055/a-2177-3793