@misc{indiciae00688d17cf28,
  title = {Squint in monozygotic twins.},
  author = {B de Vries and W A Houtman},
  year = {1979},
  doi = {10.1007/bf00142619},
  url = {https://pubmed.ncbi.nlm.nih.gov/573196/},
  note = {Source identifier: 573196}
}