Cancer hospitals share data over the 'net.
D001943:Breast Neoplasms / Q000453:epidemiology / Q000628:therapy*; D003195:Computer Communication Networks; D016208:Databases, Factual; D019983:Guideline Adherence; D006801:Humans; D010865:Pilot Projects; D012042:Registries; D016896:Treatment Outcome; D014481:United States