@article{fjell2010-20109562,
  author  = {Fjell, A. M. and Walhovd, K. B. and Westlye, L. T. and Østby, Y. and Tamnes, C. K. and Jernigan, T. L. and Gamst, A. and Dale, A. M.},
  title   = {{When does brain aging accelerate? Dangers of quadratic fits in cross-sectional studies}},
  journal = {NeuroImage},
  year    = {2010},
  doi     = {10.1016/j.neuroimage.2010.01.061},
  pmid    = {20109562},
  url     = {https://doi.org/10.1016/j.neuroimage.2010.01.061}
}