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  1. 4 Preventive Asthma Controller Medicines - Verywell Health

  2. Controlling Asthma | Asthma | CDC - Centers for Disease Control

  3. An overview of asthma management in children and adults

  4. Asthma Controllers Vs. Relievers – What’s The Difference?

  5. About CDC's National Asthma Control Program | NACP | CDC

  6. Controllers - Asthma Canada

  7. Asthma treatment: 3 steps to better asthma control - Mayo Clinic

  8. Assess and Monitor Your Asthma Control - American Lung Association

  9. Controller Inhalers: Overview of Devices, Instructions for Use, …