Lobo, D. N., Takhar, A. S., Thaper, A., Dube, M. G., & Rowlands, B. J. (2007). The morphine–prostigmine provocation (Nardi) test for sphincter of Oddi dysfunction: Results in healthy volunteers and in patients before and after transduodenal sphincteroplasty and transampullary septectomy. BMJ Group.

Lobo, D N., A S. Takhar, A. Thaper, M G. Dube, and B J. Rowlands. The Morphine–prostigmine Provocation (Nardi) Test for Sphincter of Oddi Dysfunction: Results in Healthy Volunteers and in Patients Before and After Transduodenal Sphincteroplasty and Transampullary Septectomy. BMJ Group, 2007.

Lobo, D N., et al. The Morphine–prostigmine Provocation (Nardi) Test for Sphincter of Oddi Dysfunction: Results in Healthy Volunteers and in Patients Before and After Transduodenal Sphincteroplasty and Transampullary Septectomy. BMJ Group, 2007.