Burruss, C. P., I. Bacus, and P. D. Utamsingh. “Acalculous Cholecystitis in the Setting of Immunoglobulin a Vasculitis: A Case Report With Literature Review”. International Journal of Contemporary Pediatrics, vol. 9, no. 12, Nov. 2022, pp. 1194-7, doi:10.18203/2349-3291.ijcp20223067.