Ker, C. G., Huang, T. J., Sheen, P. C., Wang, L. Y., Jan, C. M., Liu, H. W., Chang, W. Y., Chen, C. Y., Chen, E. R., Lin, G. J., & Chung (1985). Direct Cholangiographic Features and Therapeutic Methods of Biliary Ascariasis. The Kaohsiung Journal of Medical Sciences, 1(6), 334-342. https://doi.org/10.6452/KJMS.198506.0334