We found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleOperationalizing a conceptually based noncategorical definition: a first look at US children with chronic conditions.AuthorsStein RE; Silver EJPublicationArchives of pediatrics & adolescent medicine, 1999, Vol 153, Issue 1, p68ISSN1072-4710Publication typearticleDOI10.1001/archpedi.153.1.68