Genomic Imprinting genome imprinting 3 DNA Methylation 2 DNA methylation 2 genetics 2 Adult 1 Alleles 1 Allelic expression 1 Animals 1 Chromogranins 1 Chromosomes 1 Computer Simulation 1 DNA demethylation 1 Diseases in Twins 1 Female 1 GNAS 1 GNAS protein, human 1 GTP-Binding Protein alpha Subunits, Gs 1 Gene regulation 1 Genetic Testing 1 Genome-Wide Association Study 1 Heterodisomy 1 Humans 1 Hypocalcemia 1 Imprinting disorder 1 Monozygotic twins 1 Pedigree 1 Phenotype 1 Polymorphism, Single Nucleotide 1 Pseudohypoparathyroidism 1