THE ENERGITO® 2 STUDY COMPARES 2 INHALED MEDICINES FOR CHRONIC OBSTRUCTIVE PULMONARY DISEASE (COPD). ONE MEDICINE IS A COMBINATION OF TIOTROPIUM AND OLODATEROL (STIOLTO®) TAKEN USING THE RESPIMAT® INHALER AND THE OTHER MEDICINE IS A COMBINATION OF FLUTICASONE AND SALMETEROL TAKEN USING THE DISKUS: