High dose benzodiazepine use and QTc interval prolongation, a latent class analysis study Scientific Reports Metabolic phenotypes: Molecular bridges between health homeostasis and disease imbalance Computational and Structural Biotechnology Journal Frontiers Association between fatigue, peripheral serotonin, and L carnitine in hypothyroidism and in chronic fatigue syndrome Frontiers Discovery and validation of acetyl L carnitine in serum for diagnosis of major depressive disorder and remission status through metabolomic approach