@misc{indiciae0a945c491870,
  title = {Six-year developmental course of internalizing and externalizing problem behaviors.},
  author = {F C Verhulst and J van der Ende},
  year = {1992},
  doi = {10.1097/00004583-199209000-00022},
  url = {https://pubmed.ncbi.nlm.nih.gov/1400127/},
  note = {Source identifier: 1400127}
}