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Substance dependence
The psychological or physiological need to take a substance in order to experience its effects or to avoid the effects of its absence. [from MONDO]
Tobacco use disorder
Any disease or disorder that is caused by the use of tobacco. [from NCI]
Ring chromosome 3
A rare chromosomal anomaly syndrome with a highly variable phenotype. Principle characteristics are pre and postnatal growth retardation, short stature, developmental delay, mild to severe intellectual disability, microcephaly and mild dysmorphic features (including triangular face, dysplastic ears, upslanting palpebral fissures, epicanthic folds, broad nasal bridge, full nasal tip, long philtrum, downturned corners of the mouth, and micro/retrognathia). Additional manifestations reported include hypotonia, mild articular limitation, hearing loss, digital anomalies (clinodactyly, brachydactyly), cafe au lait patches and hypospadias. [from SNOMEDCT_US]
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