Levack, W. M., Watson, J., Hay‐Smith, E. J. C., Davies, C., Ingham, T., Jones, B., . . . McCarthy, B. (2018). Factors influencing referral to and uptake and attendance of pulmonary rehabilitation for chronic obstructive pulmonary disease: A qualitative evidence synthesis of the experiences of service users, their families, and healthcare providers. Cochrane Database Syst Rev.

Levack, William MM, Jane Watson, E Jean C. Hay‐Smith, Cheryl Davies, Tristram Ingham, Bernadette Jones, Margaret Cargo, Catherine Houghton, a Bernard McCarthy. "Factors Influencing Referral to and Uptake and Attendance of Pulmonary Rehabilitation for Chronic Obstructive Pulmonary Disease: A Qualitative Evidence Synthesis of the Experiences of Service Users, Their Families, and Healthcare Providers." Cochrane Database Syst Rev 2018.

Levack, William MM, et al. "Factors Influencing Referral to and Uptake and Attendance of Pulmonary Rehabilitation for Chronic Obstructive Pulmonary Disease: A Qualitative Evidence Synthesis of the Experiences of Service Users, Their Families, and Healthcare Providers." Cochrane Database Syst Rev 2018.