PubMed:10223112 / 656-823 JSONTXT

{"project":"Inflammaging","denotations":[{"id":"T5","span":{"begin":0,"end":167},"obj":"Sentence"},{"id":"T5","span":{"begin":0,"end":167},"obj":"Sentence"}],"text":"The etiology is poorly understood but several studies have recently provided support for an heterogeneity with at least three subcategories among the spectrum of PFIC."}