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Weller D, Campbell C.Weller D, et al. Among authors: campbell c.Prim Care Respir J. 2006 Dec;15(6):323-5. doi: 10.1016/j.pcrj.2006.09.001. Epub 2006 Nov 13.Prim Care Respir J. 2006.PMID: 17095298Free PMC article.No abstract available.
Price J, Campbell C, Sells J, Weller D, Campbell H, Kenicer M, Dunlop M.Price J, et al. Among authors: campbell h, campbell c.J Public Health (Oxf). 2005 Sep;27(3):246-53. doi: 10.1093/pubmed/fdi030. Epub 2005 May 3.J Public Health (Oxf). 2005.PMID: 15870100