Authors: FORSBERG B PEKKANEN J CLENCHAAS J MARTENSSON MB STJERNBERG N BARTONOVA A TIMONEN KL SKERFVING S

Citation: B. Forsberg et al., CHILDHOOD ASTHMA IN 4 REGIONS IN SCANDINAVIA - RISK-FACTORS AND AVOIDANCE EFFECTS, International journal of epidemiology, 26(3), 1997, pp. 610-619