Eraky, Mohamed E, et al. “Laparoscopic Subtotal Cholecystectomy After Grade II or III Cholecystitis via Percutaneous Transhepatic Draining of the Gallbladder”. Archives of Case Reports, Aug. 2025, pp. 245-53, https://www.clinmedcasereportsjournal.com/acr/article/view/3295.