@misc{indiciaed98448e7cd99,
  title = {Plasma gamma-glutamyl transpeptidase in heroin addicts.},
  author = {J P Colombo and J Colombo},
  year = {1979},
  doi = {10.1016/0009-8981(79)90199-2},
  url = {https://pubmed.ncbi.nlm.nih.gov/39692/},
  note = {Source identifier: 39692}
}