High-performance liquid chromatography determination of mexiletine enantimoers in plasma using direct and indirect enantioselective separations - Lanchote, Vera Lúcia; Bonato, Pierina Sueli; Dreossi, S A C; Goncalves, V B; Cesarino, E J; Bertucci, C (Journal of Chromatography B: Biomedical Aplications, 1996)