Asthma attacks can be triggered by
allergens hormones bad weather Lymphocytes rifles wheezing night sweats estrogen
A B C D E F G H
Asthma attacks are caused by allergies.
Allergens can trigger asthma attacks
Asthma attacks can be triggered by (A) allergens (B) hormones (C) bad weather (D) Lymphocytes (E) rifles (F) wheezing (G) night sweats (H) estrogen