DNA analysis revealed compound heterozygosity for mutations of GHR , including a previously reported R211H mutation and a novel duplication of a nucleotide in exon 9 ( 899dupC ) , the latter resulting in a frameshift and a premature stop codon .
O O O O O O O O B-GeneOrGeneProduct O O O O O B-SequenceVariant O O O O O O O O O O O O B-SequenceVariant O O O O O O O O O O O O O O