@misc{indiciaeb60e8102c04b,
  title = {Six osteocalcin assays compared.},
  author = {E M Díaz Diego and R Guerrero and C de la Piedra},
  year = {1994},
  url = {https://pubmed.ncbi.nlm.nih.gov/7955381/},
  note = {Source identifier: 7955381}
}