Guarding against failures.
D000707:Anaphylaxis / Q000517:prevention & control; D000766:Anesthesia, Dental; D000768:Anesthesia, General; D003813:Dentistry; D004630:Emergencies / Q000517:prevention & control; D005547:Foreign Bodies / Q000517:prevention & control; D006323:Heart Arrest / Q000517:prevention & control