Kaplan et al. [29] published their findings regarding insulin-induced hypoglycemia as a provocation test for 134 children with short stature and concluded that it was valuable for distinguishing children with GHD when it occurs as an isolated deficiency from children with other forms of growth restriction; however, it did not provide insight regarding other forms of growth restriction. Here, INS is linked to hyperinsulinemic hypoglycemia, familial, 4.