Cook, P. A., Downing, J., Wheater, C. P., Bellis, M. A., Tocque, K., Syed, Q., & Phillips-Howard, P. A. (2009). Influence of socio-demographic factors on distances travelled to access HIV services: Enhanced surveillance of HIV patients in north west England. BioMed Central.

Cook, Penny A., Jennifer Downing, C Philip Wheater, Mark A. Bellis, Karen Tocque, Qutub Syed, and Penelope A. Phillips-Howard. Influence of Socio-demographic Factors On Distances Travelled to Access HIV Services: Enhanced Surveillance of HIV Patients in North West England. BioMed Central, 2009.

Cook, Penny A., et al. Influence of Socio-demographic Factors On Distances Travelled to Access HIV Services: Enhanced Surveillance of HIV Patients in North West England. BioMed Central, 2009.