Duc, LH; Hong, HA; Atkins, HS; Flick-Smith, HC; Durrani, Z; Rijpkema, S; Titball, RW; Cutting, SM; (2007) Immunization against anthrax using Bacillus subtilis spores expressing the anthrax protective antigen. Vaccine, 25 (2). pp. 346-355. ISSN 0264-410X DOI: https://doi.org/10.1016/j.vaccine.2006.07.037 Full text not available from this repository.