@misc{indiciae1ae22a831f8a,
  title = {Design and statistical problems in prevention.},
  author = {B Gullberg},
  year = {1996},
  doi = {10.3109/03009749609103764},
  url = {https://pubmed.ncbi.nlm.nih.gov/8966482/},
  note = {Source identifier: 8966482}
}