Current methodology in research on the etiology of schizophrenia: serious difficulties which suggest the use of the high-risk-group method.

@article{Mednick1968CurrentMI,
  title={Current methodology in research on the etiology of schizophrenia: serious difficulties which suggest the use of the high-risk-group method.},
  author={Sarnoff A. Mednick and Thomas Farrell McNeil},
  journal={Psychological bulletin},
  year={1968},
  volume={70 6},
  pages={681-93}
}