TY - JOUR A1 - Folkerts, G. A1 - Walzl, G. A1 - Openshaw, P.J.M. T1 - Do common childhood infections ‘teach’ the immune system not to be allergic? Y1 - 2000 DO - 10.1016/S0167-5699(00)01582-6 JF - Immunology Today VL - 21 IS - 3 SP - 118 EP - -120 ER -