The Royal College of Physicians Ireland highlighted a 30 % increase Cause_change_of_position_on_a_scale in ambulance call-outs on each successive Arthur 's Day and a doubling Cause_change_of_position_on_a_scale in alcohol-related liver disease Bodily_harm over the previous decade , associated Collaboration with drink promotion Cause_change_of_position_on_a_scale and the relative cheapness of alcohol .