Maintaining first aid skills, a question of time?
Pettifer
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D016887:Cardiopulmonary Resuscitation; D002568:Certification; D004509:Education, Nursing, Continuing; D005392:First Aid; D006801:Humans; D009785:Occupational Health Nursing / Q000193:education* / Q000592:standards*; D012189:Retrospective Studies