@misc{indiciaecea39582273c,
  title = {Blood sampling in doping control. First experiences from regular testing in athletics.},
  author = {K I Birkeland and M Donike and A Ljungqvist and M Fagerhol and J Jensen and P Hemmersbach and H Oftebro and E Haug},
  year = {1997},
  doi = {10.1055/s-2007-972587},
  url = {https://pubmed.ncbi.nlm.nih.gov/9059898/},
  note = {Source identifier: 9059898}
}