anandamide 2 arachidonoylglycerol 1 2-Arachidonoyl glycerol 1 2-hydroxy oleic acid 1 Anandamide 1 Article 1 Blood sampling 1 Endocannabinoid 1 Pre-analytics 1 analytical research 1 anti Bcl2 1 anticoagulant agent 1 biological activity 1 biological marker 1 blood clotting 1 blood sampling 1 body mass 1 endocannabinoid 1 endocannabinoid system 1 enzyme activity 1 glutamic acid 1 glycerol 1 human 1 isomerization 1 limit of detection 1 limit of quantitation 1 low temperature 1 mass spectrometry 1 membrane lipid therapy 1 metabolic activation 1