R. Wang, Y. Tian, L. Zhang, Z. Zhang: Simultaneous determination of levonorgestrel and two endogenous sex hormones in human plasma based on LC-MS/MS. In: Bioanalysis. 8(11), Jun 2016, S. 1133–1144. PMID 27211854
S. Ananthula, D. R. Janagam, S. Jamalapuram, J. R. Johnson, T. D. Mandrell, T. L. Lowe: Development and validation of sensitive LC/MS/MS method for quantitative bioanalysis of levonorgestrel in rat plasma and application to pharmacokinetics study. In: J Chromatogr B Analyt Technol Biomed Life Sci. 1003, 15. Okt 2015, S. 47–53. PMID 26409262
P. G. Zanchetta, O. Heringer, R. Scherer, H. P. Pacheco, R. Gonçalves, A. Pena: Evaluation of storage and evaporation in the removal efficiency of D-norgestrel and progesterone in human urine. In: Environ Monit Assess. 187(10), Okt 2015, S. 619. PMID 26353967
P. Avar, G. Maasz, P. Takács, S. Lovas, Z. Zrinyi, R. Svigruha, A. Takátsy, L. G. Tóth, Z. Pirger: HPLC-MS/MS analysis of steroid hormones in environmental water samples. In: Drug Test Anal. 8(1), Jan 2016, S. 123–127. PMID 26059287
F. F. Al-Qaim, M. P. Abdullah, M. R. Othman, J. Latip, Z. Zakaria: Multi-residue analytical methodology-based liquid chromatography-time-of-flight-mass spectrometry for the analysis of pharmaceutical residues in surface water and effluents from sewage treatment plants and hospitals. In: J Chromatogr A. 1345, 6. Jun 2014, S. 139–153. PMID 24768127
J. Fick, R. H. Lindberg, J. Parkkonen, B. Arvidsson, M. Tysklind, D. G. Larsson: Therapeutic levels of levonorgestrel detected in blood plasma of fish: results from screening rainbow trout exposed to treated sewage effluents. In: Environ Sci Technol. 44(7), 1. Apr 2010, S. 2661–2666. PMID 20222725
