title: [Total hydroxyproline levels in sera of patients with periodontal disease (author's transl)].
mesh_terms: D000293:Adolescent; D000328:Adult; D006801:Humans; D006909:Hydroxyproline / Q000097:blood*; D008875:Middle Aged; D010510:Periodontal Diseases / Q000097:blood*
chemical_list: D006909:Hydroxyproline