%0 Journal Article %T Measurement invariance of the SF-12 among different demographic groups: The HELIUS study %A Eske M. Derks %A Henrike Galenkamp %A Karien Stronks %A Lidwine B. Mokkink %J Archive of "PLoS ONE". %D 2018 %R 10.1371/journal.pone.0203483 %U https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6136718/