Validation of a simple bioanalytical method for the determination of melatonin concentration in human serum using high-performance liquid chromatography with a fluorescent detector. - Lovrić, Mila; Jelić-Knezović, Nevenka; Ščavničar, Andrijana; Miloš, Marija; Rogić, Dunja (Journal of Liquid Chromatography & Related Technologies, 2024)