title: Preface.
authors.affiliation: Department of Dermatology, Gunma University School of Medicine, Maebashi, Japan.
authors.forename: Osamu
authors.initials: O
authors.lastname: Ishikawa
authors.affiliation: Dermatology, Kinki University, Sayama, Osaka, Japan.
authors.forename: Akira
authors.initials: A
authors.lastname: Kawada
authors.affiliation: Saiseimirai Clinic, Kobe, Japan.
authors.forename: Masamitsu
authors.initials: M
authors.lastname: Ichihashi
authors.affiliation: Department of Geriatric and Environmental Dermatology, Nagoya City University Graduate School of Medical Science, Nagoya, Japan.
authors.forename: Akimichi
authors.initials: A
authors.lastname: Morita
mesh_terms: D003880:Dermatology / Q000458:organization & administration*; D006801:Humans; D015595:Skin Aging