Guanidinoacetate Methyltransferase (GAMT) Deficiency Sequencing Gram Stain Granzyme B by Immunohistochemistry Growth Hormone Growth Hormone Antibody Growth Hormone by Immunohistochemistry Growth Hormone, 0 Minutes Growth Hormone, 120 Minutes Glucose-6-Phosphate Dehydrogenase (G6PD) 2 Mutations Growth Hormone, 15 Minutes Glucose-6-Phosphate Dehydrogenase Deficiency (G6PD) Sequencing Growth Hormone, 150 Minutes Glutamic Acid Decarboxylase Antibody Growth Hormone, 180 Minutes Glutamic Acid Decarboxylase Antibody (GAD65) and Insulin Antibodies with Reflex to IA-2 Antibody Growth Hormone, 30 Minutes Glutarylcarnitine Quantitative, Urine Growth Hormone, 45 Minutes Glutathione Total Growth Hormone, 60 Minutes