@misc{indiciae8c78bfcfb95d,
  title = {Performance-based and self-reported physical functioning in low-functioning older persons: congruence of change and the impact of depressive symptoms.},
  author = {G I Kempen and M Sullivan and E van Sonderen and J Ormel},
  year = {1999},
  doi = {10.1093/geronb/54b.6.p380},
  url = {https://pubmed.ncbi.nlm.nih.gov/10625966/},
  note = {Source identifier: 10625966}
}