title: Terminology of CCN1-6 should not be applicable for their fragments and be limited to only full length CCN1-6.
authors.affiliation: Advanced Research Center for Oral and Craniofacial Sciences (ARCOCS), Okayama University Dental School, 2-5-1, Shikata-cho, Okayama, 700-8525, Japan, takigawa@md.okayama-u.ac.jp.
authors.forename: Masaharu
authors.initials: M
authors.lastname: Takigawa