PubMed:2019586 / 1276-1451 JSONTXT

{"project":"sentences","denotations":[{"id":"TextSentencer_T11","span":{"begin":0,"end":175},"obj":"Sentence"},{"id":"T11","span":{"begin":0,"end":175},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"This could be explained by the presence of a small 9-base pair exon which can be introduced, or not, by alternative splicing as a stretch of 9 or 6 bases into the mature mRNA."}