@misc{indiciaec253ca29e48b,
  title = {Using splines to detect changes in PSA doubling times.},
  author = {Brad Guess and Robert Jennrich and Henry Johnson and Ray Redheffer and Mark Scholz},
  year = {2003},
  doi = {10.1002/pros.10176},
  url = {https://pubmed.ncbi.nlm.nih.gov/12497581/},
  note = {Source identifier: 12497581}
}