National Institutes of Health: Co to są próby i badania kliniczne?
American Lung Association: Asthma Symptoms, Causes, & Risk Factors.
Mayo Clinic: Asthma Treatment: 3 Steps to Better Asthma Control, Asthma Medications: Know Your Options, Asthma Treatment: Do Complementary and Alternative Approaches Work? Asthma Diet: Czy to co jesz ma znaczenie?
American Lung Association: Reduce Asthma Triggers.
Asthma UK: Asthma Symptoms Getting Worse, Sleep and Asthma.
National Alliance on Mental Illness: Getting Help Paying for Medications.
Better Health Channel: Asthma Medication.
