PubMed:819430 / 903-999 JSONTXT

{"project":"sentences","denotations":[{"id":"T8","span":{"begin":0,"end":96},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"This phenomenon, sometimes called positive drift, prevents normalization of these growth curves."}