Berbers, G.A.

dioxin children exposure 42 months level month pcb body burden effect prevalence study disease health pcb exposure infection immunologic middle-ear infections infant breast-fed t cells nursery school attendance antibody parent middle-ear polychlorinated biphenyls chicken pox breast-feeding antibody levels number dutch plasma burden blood cell counts breast milk day care polychlorinated atopy reaction immunologic marker analyses group variable blood mono-ortho child measles marker biphenyl duration table lymphocytes chicken weisglas-kuperu chest congestion background exposure analyses study group weisglas-kuperus n family history background rubella pg /g milk childhood perinatal background exposure lymphocyte result infancy school pcb 42 months formula-fed correlation analysis otitis media health effects sauer pjj netherland hospital perinatal change asthma inuit infants compound