@misc{indiciaee494c59fee36,
  title = {Post-translational modifications: a challenge for proteomics and bioinformatics.},
  author = {Ron D Appel and Amos Bairoch},
  year = {2004},
  doi = {10.1002/pmic.200490039},
  url = {https://pubmed.ncbi.nlm.nih.gov/15174121/},
  note = {Source identifier: 15174121}
}