@article{0f89104189ae40778998fbb7dd1152e6,
title = "Quantification of drugs in plasma without primary reference standards by liquid chromatography-chemiluminescence nitrogen detection: application to tramadol metabolite ratios",
keywords = "319 Forensic science and other medical sciences",
author = "Suvi Ojanper{\"a} and Ilpo Rasanen and Johanna Sistonen and Anna Pelander and Erkki Vuori and Ilkka Ojanper{\"a}",
year = "2007",
language = "English",
volume = "29",
pages = "423--428",
journal = "Therapeutic Drug Monitoring",
issn = "0163-4356",
publisher = "Lippincott Williams and Wilkins Ltd.",
}