An example of this is the study by Al-Bayati et al. [40], which compared 55 patients with type 2 diabetes divided into two subgroups (the first group n = 31 with microalbuminuria between 30 and 299 μg/mg and a second group n = 29) with an albumin level below 30 μg/mg with 37 healthy subjects. Here, ALB is linked to type 2 diabetes mellitus.