Anchor: The prevalence of this co-factor to the emergency admission, and the fact that alcohol is a risk factor both for the first visit and for a return visit to the emergency setting, have occasioned a call for an effective method of intervening with alcohol problems in these settings.
Entailed: Alcohol is a risk factor for first and return visits to the ED.
Contradiction: Alcohol is not necessarily a risk factor for ED visits.
Contradiction: There is a man in a green shirt.
Contradiction: In Seattle, the effects of pollution on asthma patients were measured.
Contradiction: This phase of an implementation project is expected to take no less than six months to complete.
Contradiction: A child playing in the sand with a bucket and spade.