TOPICS: Glycogen metabolism, glucose, liver, muscle, glycogenesis, glycogenolysis, linkages, branches, alpha-(1,4) bonds, alpha-(1,6) bonds, Von Gierke disease (type I), Pompe disease (type II), Cori disease (type III), McArdle disease (type V), glucose-6-phosphatase, alpha-1,4-glucosidase (acid alpha-glucosidase), alpha-1,6-glucosidase, glycogen phosphorylase, hypoglycemia, hepatic glycogen, hepatomegaly, Cori cycle, lactic acidosis, lysosomal accumulation of glycogen, cardiomegaly, gluconeogenesis, glycogenolysis, hypotonia, ketoacidosis, glycogen mobilization, glycogen breakdown, hexokinase, glucokinase, glycogen synthase, debranching enzyme, glucose, glucose 1-phosphate, glucose 6-phosphate