Nakai, Y., Isayama, H., Wang, H., Rerknimitr, R., Khor, C., Yasuda, I., Kogure, H., Moon, J. H., Lau, J., Lakhtakia, S., Ratanachu‐ek, T., Seo, D. W., Lee, D. K., Makmun, D., Dy, F., Liao, W., Draganov, P. V., Almadi, M., Irisawa, A., Katanuma, A., Kitano, M., Ryozawa, S., Fujisawa, T., Wallace, M. B., Itoi, T., & Devereaux, B. (2020). international consensus statements for endoscopic management of distal biliary stricture. Journal of gastroenterology and hepatology, 35(6), 967–979. http://access.bl.uk/ark:/81055/vdc_100103404458.0x000046