*The unconjugated antibody CD11b was incubated with the secondary Anti-Mouse IgG − FITC antibody from Sigma Chemical Co. (St. Louis, M.O., USA) for 25 minutes
Data are given as mean ± SEM where SEM was estimated from the observed fraction, f, according to SEM = √f(1-f)/n where n was the total number of observed filaments in a given experiment. The data were
