title: [Series: Let's think-clinical quiz (question): A 45 year-old man experiencing returning bronchitis and fever two to three times annually].
authors.affiliation: Department of Community Medicine and Primary Care Development, Akita University School of Medicine, Japan.
authors.forename: Hitoshi
authors.initials: H
authors.lastname: Hasegawa
mesh_terms: D017088:AIDS-Related Opportunistic Infections / Q000175:diagnosis*; D006801:Humans; D008297:Male; D008875:Middle Aged; D011020:Pneumonia, Pneumocystis / Q000175:diagnosis*