Researchers say the speech impediment appears to stem from a defectin the gene that regulates the way brain cells break down and recycle waste products.

VOA: standard.2010.02.11

The abnormal gene also was found in 77 unrelated Pakistanis with the speech impediment.

VOA: standard.2010.02.11

Seventy-two years ago tomorrow, a chubby, stoop-shouldered, funny faced man with a speech impediment took a new job.

FORBES: Connect

While the newspaper mockery is not of a genuine speech impediment, for some there's a sense that it might encourage that type of behaviour.

BBC: Roy Hodgson: Is it wrong to mock the way he speaks?

The biggest impediment to this movie is Sandler's speech.

CNN: Review: Sandler should've punted 'Waterboy'