This further increased 2.4 ± 0.9 mm (n = 6; p < 0.01) with an additional PLC deficiency and 5.6 ± 2.3 mm (n = 6; p < 0.05) with an additional PMC deficiency. This evidence concerns the gene HSPG2 and hyperinsulinemic hypoglycemia, familial, 4.