I hope you don't mind me posting that I recently published a book, Living Well Without a Gallbladder: A Guide to Postcholecystectomy Syndrome. It may be helpful for your readers. It's available through most online booksellers and is in paperback and ebook formats. I suffered for 13 years misdiagnosed with various ailments--psychological and physical. Turned out my pain and nausea were all from having my gallbladder removed! This organ isn't like the appendix. It actually does a lot for our body. I wrote this to help those of us whose doctors won't acknowledge we feel worse after gallbladder removal.