Leitzel et al.Immunoprecipitation and Western blotting were used to characterize further the c-erbB-2 immunoreactivity in the serum of four breast cancer patients.  Table 4Risk of breast cancer in relation to serum concentrations of organochlorines in quartiles by estrogen receptor status.  Table 5Overall breast cancer survival in relation to serum concentrations of organochlorines by estrogen receptor status.Table 1 shows the measured lipid adjusted serum organochlorine concentration among these breast cancer cases. We measured fat-soluble antioxidant nutrients, carotenoids, retinoids and tocopherols in serum and endogenous carotenoid levels in normal breast adipose tissue.Correlations between carotenoid concentrations in serum and in breast adipose tissue [...]