@article{GhirardiBrikellKujaHalkolaetal.2017,
  author    = {Laura Ghirardi and Isabell Brikell and Ralf Kuja-Halkola and Christine M. Freitag and Barbara Franke and Philip Asherson and Paul Lichtenstein and Henrik Larsson},
  title     = {The familial co-aggregation of ASD and ADHD: a register-based cohort study},
  journal   = {Molecular Psychiatry},
  volume    = {2017},
  doi       = {10.1038/mp.2017.17},
  year      = {2017},
}