@misc{indiciaec68fd487423d,
  title = {The Denver prescreening developmental questionnaire (PDQ).},
  author = {W K Frankenburg and W J van Doorninck and T N Liddell and N P Dick},
  year = {1976},
  url = {https://pubmed.ncbi.nlm.nih.gov/940714/},
  note = {Source identifier: 940714}
}