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Safety and efficacy of GSK233705 and salmeterol versus monotherapy with salmeterol, tiotropium, or placebo. http://t.co/Yu5bXn87
Safety and efficacy of GSK233705 and salmeterol versus monotherapy with salmeterol, tiotropium, or placebo. http://t.co/Yu5bXn87
Safety and efficacy of GSK233705 and salmeterol versus monotherapy with salmeterol, tiotropium, or placebo. http://t.co/gugOLVnx
Safety and efficacy of GSK233705 and salmeterol versus monotherapy with salmeterol, tiotropium, or placebo. http://t.co/wuR518Sz