@misc{indiciaef0ac35427966,
  title = {Age matters--thoughts on a grading system for ABCA4 mutations.},
  author = {Birgit Lorenz and Markus N Preising},
  year = {2004},
  doi = {10.1007/s00417-004-1078-5},
  url = {https://pubmed.ncbi.nlm.nih.gov/15614538/},
  note = {Source identifier: 15614538}
}