Smith, A., Evans, J., Gibbons, C., Alonso, J., & Valderas, J. (2018). The National Institutes of Health Patient-Reported Outcomes Measurement Information System (PROMIS): A view from the UK. Patient Related Outcome Measures, Volume 9, pp. 345-352. doi:10.2147/prom.s141378

Smith, Alexander, Jonathan Evans, Chris Gibbons, Jordi Alonso, and Jose Valderas. "The National Institutes of Health Patient-Reported Outcomes Measurement Information System (PROMIS): A View From the UK." Patient Related Outcome Measures Volume 9 (2018): 345-352.

Smith, Alexander, et al. "The National Institutes of Health Patient-Reported Outcomes Measurement Information System (PROMIS): A View From the UK." Patient Related Outcome Measures Volume 9 (2018): 345-352.