Biliary pain and a normal ultrasound

Cao, A., Eslick, G. D., & Cox, M. R. (2018). Biliary pain and a normal ultrasound. In The Management of Gallstone Disease: A Practical and Evidence-Based Approach (pp. 147–154). Springer International Publishing. https://doi.org/10.1007/978-3-319-63884-3_10