title: Journey through time.
authors.affiliation: geraldnels@aol.com
authors.forename: G
authors.initials: G
authors.lastname: Nelson
mesh_terms: D002648:Child; D005260:Female; D006801:Humans; D008137:Longitudinal Studies; D011859:Radiography; D014078:Tooth Eruption / Q000502:physiology; D014095:Tooth, Impacted / Q000000981:diagnostic imaging / Q000503:physiopathology*