@article {6490, title = {Reliability and validity of the Bowel Function Index for evaluating opioid-induced constipation: translation, cultural adaptation and validation of the Portuguese version (BFI-P)}, journal = {Current Medical Research and Opinion}, volume = {33}, year = {2017}, note = {Export Date: 19 March 2018}, month = {2017}, pages = {563 - 572}, url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85009232079\&doi=10.1080\%2f03007995.2016.1273204\&partnerID=40\&md5=92410cec6abc1abe7160414912646a41}, author = {Due{\~n}as, M. and Mendon{\c c}a, L. and Sampaio, R. and Gouvinhas, C. and Oliveira, D. and Castro-Lopes, J.M. and Azevedo, L.F.} }