Hipertrofi ventrikel akibat induksi hipoksia sistemik kronik, analisis ekspresi protein apelin-13 dan BNP-45 serta hubungannya dengan stres oksidatif. = Ventricular hypertrophy due to induction of chronic systemic hypoxia, analysis of apelin-13 and BNP-45 protein expression and its relation to oxidative stress.