A user had a very detailed information request;- statistics on the cost/prevalence of treating constipation related to opioid treatment in UK hospitals or general practices. A Medline search led to some related studies. Any suggestions on other potential sources would be great. HES online ( http://www.hesonline.nhs.uk ) was also consulted. In the HES, there is the option of asking for a tailor-made report. Has anyone requested such a report ? If so would one expect to get near the level of detail of the above information request? Thanks for your attention, Thomas Veale Assistant librarian Laxton Library.