Table 1 Randomized controlled trials (RCTs) for the 5-grass tablet and the allergoid mix

5-grass tablet

Didier 2007 [18]

Wahn 2009 [19]

Didier 2011 [20]

Cox 2012 [21]

Allergoid mix

Pfaar 2012 (Depiquick) [22]

Corrigan 2009 (Allergovit) [23]

Drachenberg 2001 (Pollinex) [24]

Du Buske 2011 (Pollinex) [25]

Brewczynski 1999 (Purethal) [26]