@misc{indiciae6c04edcb0745,
  title = {Normative melatonin excretion: a multinational study.},
  author = {L Wetterberg and J D Bergiannaki and T Paparrigopoulos and L von Knorring and G Eberhard and T Bratlid and A Yuwiler},
  year = {1999},
  doi = {10.1016/s0306-4530(98)00076-6},
  url = {https://pubmed.ncbi.nlm.nih.gov/10101729/},
  note = {Source identifier: 10101729}
}