Asthma and allergies among children in West and East Germany: a comparison between Munster and Greifswald using the ISAAC phase I protocol. International Study of Asthma and Allergies in Childhood
H Duhme, SK Weiland, P Rudolph, A Wienke, A Kramer, U Keil
European Respiratory Journal 1998 11: 840-847; DOI: 10.1183/09031936.98.11040840