(1999). Should the corticosteroid to bronchodilator ratio be promoted as a quality prescribing marker?. Public Health. http://doi.org/10.1038/sj.ph.1900583.
(1999). Switching between metered dose inhalers (MDIs) and dry powder inhalers (DPIs) in airways disease: An analysis of agespecific rates using the general practice research database. Journal of Applied Therapeutic Research..
(2000). A comparison of trends in problematic drug misuse from two reporting systems. J Public Health Med..
(2000). Defining the spectrum of appropriate prescribing: implications for effective medicines management. International Journal of Pharmaceutical Medicine. http://doi.org/10.2165/00124363-200002000-00013.
(2000). Ratio of inhaled corticosteroid to bronchodilator treatment and asthma hospitalisation. Curr Med Res Opin..
(2001). Siblings, multiple births, and the incidence of allergic disease: a birth cohort study using the West Midlands general practice research database. Thorax..
(2001). Trends in antibiotic prescribing and associated indications in primary care from 1993 to 1997. J Public Health Med..
(2002). Early exposure to infections and antibiotics and the incidence of allergic disease: a birth cohort study with the West Midlands General Practice Research Database. J Allergy Clin Immunol..
(2003). Head lice diagnosed in general practice in the West Midlands between 1993 and 2000: a survey using the General Practice Research Database. Commun Dis Public Health..
(2004). What has happened to antimicrobial usage in primary care in the United Kingdom since the SMAC report? - description of trends in antimicrobial usage using the General Practice Research Database. J Public Health (Oxf). http://doi.org/10.1093/pubmed/fdh179.