Centers for Disease Control and Prevention. (2000) Update: Clostridium novyi and unexplained illness among injecting drug users, Scotland, Ireland, and England, April-June 2000. MMWR. Morbidity and Mortality Weekly Report , 49 , (24) , pp. 543-545.

Centers for Disease Control and Prevention. (2000) Unexplained illness and death among injecting drug users: Glasgow, Scotland; Dublin, Ireland; and England, April-June 2000. MMWR. Morbidity and Mortality Weekly Report , 49 , (22) , pp. 489-492.