english: Incidence in the population: 1 child in 40 children to 1:1,000 1:1,000 to 1: 10,000 1:10,000 to 1: 1 million 1:10,000 to 1: 1 million
non_english: 1000'S I 1000 's I I 000 â‘ , S I 1000 'S I (000 'S I 1000'S I I 000 'S I (000 'S I 1000 'S I 1000's I