For their article in the January issue of "Infection and Immunity" Julie Guignot and her colleagues utilise a anti-CEACAM antibody, which has been purchased at antibodies-online.com.
Source: Julie Guignot, Sylvie Hudault, Imad Kansau, Ingrid Chau, and Alain L. Servin. Human Decay-Accelerating Factor and CEACAM Receptor-Mediated Internalization and Intracellular Lifestyle of Afa/Dr Diffusely Adhering Escherichia coli in Epithelial Cells. Infection and Immunity, January 2009, p. 517-531, Vol. 77, No. 1