Wajntal, A A ring D chromosome in association with Down's syndrome-like phenotype. [electronic resource] - Arquivos de neuro-psiquiatria Mar 1973 - 32-7 p. digital Publication Type: Journal Article ISSN: 0004-282X Standard No.: 10.1590/s0004-282x1973000100004 doi Subjects--Topical Terms: ChildChromosome AberrationsChromosome DisordersChromosomes, Human, 13-15DermatoglyphicsDown SyndromeFemaleHumansKaryotyping