title: Photodynamic therapy--achievements and prospects.
authors.affiliation: Regional Radiotherapy Centre, Cookridge Hospital, Leeds, UK.
authors.forename: D
authors.initials: D
authors.lastname: Ash
authors.forename: S B
authors.initials: SB
authors.lastname: Brown
mesh_terms: D006801:Humans; D009369:Neoplasms / Q000188:drug therapy*; D010778:Photochemotherapy