Research Article
Sublingual Immunotherapy with a Five-Grass Pollen Tablet in Adult Patients with Allergic Rhinitis: An Open, Prospective, Noninterventional, Multicenter Study
Figure 2
Weekly atmospheric grass pollen levels in Germany during the 2008 and 2009 grass pollen seasons (pollen data kindly provided by Professor K.-C. Bergmann, Charité, Berlin, Germany; http://www.pollenstiftung.de/).