title: Cancer clusters: what have we learned?
authors: B W
authors: BW
authors: Stewart
mesh_terms: D001315:Australia / Q000453:epidemiology; D002273:Carcinogens; D015984:Causality; D002487:Centers for Disease Control and Prevention, U.S.; D016000:Cluster Analysis; D004781:Environmental Exposure; D006801:Humans; D009369:Neoplasms / Q000453:epidemiology* / Q000209:etiology; D014481:United States
chemical_list: D002273:Carcinogens