Thomas, C. C., V., S., Anto, R. M., Nagarajan, F., Goswami, D., Singh, N. M. and Devi, S. R. (2019) “Bacteriological study of nidus of gallstones”, International Surgery Journal, 6(9), pp. 3271–3277. doi: 10.18203/2349-2902.isj20194064.