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  1. Adult & Child Choking: Symptoms and First Aid | Red Cross

  2. Choking: First aid - Mayo Clinic

  3. Choking: First Aid and Prevention | Johns Hopkins Medicine

  4. Heimlich Maneuver: Choking Treatment Rescue Procedure and First Aid

  5. What to Do When Someone is Choking: First Aid Steps

  6. [PDF]

    CHOKING

  7. Choking first aid | What to do if someone is choking - Nuffield …

  8. Choking First Aid - First Aid Advice | St John Ambulance

  9. Choking: First aid - Hancock Health

  10. Choking - Choking - MSD Manual Consumer Version