A positive effect.
Legge
A
A
D000554:Ambulatory Care Facilities / Q000458:organization & administration*; D001249:Asthma / Q000451:nursing*; D006801:Humans; D015403:Nursing Evaluation Research; D010353:Patient Education as Topic; D013041:Specialties, Nursing / Q000193:education* / Q000458:organization & administration*