How to design and evaluate randomized controlled trials in immunotherapy for allergic rhinitis: an ARIA-GA(2) LEN statement

Bousquet, J; Schünemann, Hj; Bousquet, Pj; Bachert, C; Canonica, Giorgio; Casale, Tb; Demoly, P; Durham, S; Carlsen, Kh; Malling, Hj; Passalacqua, Giovanni; Simons, Fe; Anto, J; Baena Cagnani, Ce; Bergmann, Kc; Bieber, T; Briggs, Ah; Brozek, J; Calderon, Ma; Dahl, R; Devillier, P; Gerth van Wijk, R; Howarth, P; Larenas, D; Papadopoulos, Ng; Schmid Grendelmeier, P; Zuberbier, T.