Hartley, G; Taylor, R; Prior, J; Newstead, S; Hitchen, PG; Morris, HR; Dell, A; Titball, RW; (2006) Grey variants of the live vaccine strain of Francisella tularensis lack lipopolysaccharide O-antigen, show reduced ability to survive in macrophages and do not induce protective immunity in mice. Vaccine, 24 (7). pp. 989-996. ISSN 0264-410X DOI: https://doi.org/10.1016/j.vaccine.2005.08.075 Full text not available from this repository.

Hartley, MG; Green, M; Choules, G; Rogers, D; Rees, DGC; Newstead, S; Sjostedt, A; Titball, RW; (2004) Protection afforded by heat shock protein 60 from Francisella tularensis is due to copurified lipopolysaccharide. Infection and immunity, 72 (7). p. 4109. ISSN 0019-9567 DOI: https://doi.org/10.1128/IAI.72.7.4109-4113.2004 Full text not available from this repository.