Most children with a rare autism-linked mutation develop baby teeth one to two years earlier than usual.
An analysis of whole genomes from more than 5,000 people has unearthed 18 new candidate genes for autism.
Understanding how mutations in genes linked to autism perturb the different versions of proteins the genes form could reveal new targets for treatments.
Most adults with genetic variants tied to certain conditions, such as heart disease or cancer, go undiagnosed.
A massive sequencing study spanning seven countries links 38 new genes to autism and developmental delay.