Zwar, N., Hermiz, O., Hasan, I., Comino, E., Middleton, S., Vagholkar, S., & Marks, G. (2008). A cluster randomised controlled trial of nurse and GP partnership for care of Chronic Obstructive Pulmonary Disease. BioMed Central.

Zwar, Nicholas, Oshana Hermiz, Iqbal Hasan, Elizabeth Comino, Sandy Middleton, Sanjyot Vagholkar, و Guy Marks. A Cluster Randomised Controlled Trial of Nurse and GP Partnership for Care of Chronic Obstructive Pulmonary Disease. BioMed Central, 2008.

Zwar, Nicholas, et al. A Cluster Randomised Controlled Trial of Nurse and GP Partnership for Care of Chronic Obstructive Pulmonary Disease. BioMed Central, 2008.