The primary focus of statistical analysis is to verify the effect of obesity on oseltamivir/oseltamivir carboxylate pharmacokinetics as measured by oseltamivir carboxylate Cmax, AUC (0-12), AUC (0-24), C12, λz, and t1/2 and oseltamivir Cmax, AUC (0-12), and C12.