1. Impact of respiratory conditions: a guide for primary care organisations;National Respiratory Training Centre,2002
2. Respiratory conditions: are health needs being met?;National Asthma and Respiratory Training Centre,2000
3. Chronic obstructive pulmonary disease: national clinical guideline on management of adults with chronic obstructive pulmonary disease in primary and secondary care;National Collaborating Centre for Chronic Conditions;Thorax,2004
4. Office for National Statistics, General Register Office for Scotland, Registrar General for Northern Ireland.
5. Predictors of survival in severe, early onset COPD;Hersh;Chest,2004