Does leads the application of influenza vaccine in patients with pneumonia over 60 years and have a concomitant disease - chronic obstructive pulmonary disease (COPD) to decrease the frequency of exacerbations compared with no treatment Which of the following answers corresponds to the population according to the principle of PICO

-Patients with pneumonia over 60 years and have a concomitant disease - chronic obstructive pulmonary disease (COPD)