Fig. 2From: 18q22.1-qter deletion and 4p16.3 microduplication in a boy with speech delay and mental retardation: case report and review of the literatureSNP array-based chromosome analysis. a Identification of the deletion in chromosome 18 revealed an 11.2-Mb deletion at 18q22.1 (chr18:66,794,478–78,015,180). b Revealing a 1.8-Mb duplication at 4p16.3 (chr4:71,566–1,883,647)Back to article page