The initial data collection process will be performed by the data collectors at each individual site. These data collectors will be different in each ED, depending on the resources at the individual ED. At Montefiore and Jacobi, the data collectors are salaried, trained, technician level employees, who have passed required research ethics courses. The data collectors will be trained for this particular study by the principal investigator and site investigators. Their training will include mock patient encounters. The data collectors will use a standardized data collection instrument to collect baseline information, pain scores, and side effects in the ED. After the ED data have been obtained, the data collection instrument will be photocopied and faxed to a dedicated research clerk in the Department of Emergency Medicine at Albert Einstein College of Medicine. The receiving fax machine is a private fax machine secured in an office behind two locked doors.