@misc{indiciaea7806044a94a,
  title = {The effect of eliminating interfering substances by solid-phase extraction and sample-pH adjustment in the colorimetric assay of urinary nitrite and nitrate.},
  author = {S Ohkawa and K Ohishi and T Yoneyama and A Hishida and H Kumagai},
  year = {1998},
  doi = {10.1006/abio.1998.2627},
  url = {https://pubmed.ncbi.nlm.nih.gov/9570856/},
  note = {Source identifier: 9570856}
}