title: Photodynamic therapy for bladder cancer: ethics of a collaborative trial in China.
mesh_terms: D002681:China; D002986:Clinical Trials as Topic; D004992:Ethics, Medical; D006414:Hematoporphyrin Photoradiation; D006801:Humans; D007258:Informed Consent; D007391:International Cooperation; D010778:Photochemotherapy; D014481:United States; D001749:Urinary Bladder Neoplasms / Q000188:drug therapy*