title: Toshihiko Hayashi commentary 5.
authors.affiliation: Teikyo Heisei University, Japan.
authors.forename: Toshihiko
authors.initials: T
authors.lastname: Hayashi
mesh_terms: D000818:Animals; D001671:Biochemistry / Q000193:education / Q000639:trends; D001847:Bone Diseases / Q000235:genetics / Q000378:metabolism / Q000503:physiopathology; D001842:Bone and Bones / Q000737:chemistry / Q000378:metabolism*; D003094:Collagen / Q000737:chemistry* / Q000378:metabolism*; D005355:Fibrosis / Q000235:genetics / Q000378:metabolism / Q000503:physiopathology; D006801:Humans; D010012:Osteogenesis / Q000502:physiology*; D015595:Skin Aging / Q000187:drug effects / Q000502:physiology
chemical_list: D003094:Collagen