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You have two SAS datasets, 'baseline' and 'followup', that are supposed to have the same structure and variable attributes. However, discrepancies are suspected. You need to compare the datasets to see if there are any differences in the attributes of the variables. Which PROC COMPARE option would you use to display only those variables that differ, without listing those that match?

You are tasked with producing a series of Forest plots to graphically display the results of a subgroup analysis in a clinical study using PROC SGPLOT. You must alter the marker attributes for each subgroup to enhance the clarity of the plot. Which combination of statements and options should you use to modify the marker color, size, and style for each subgroup's reference line, within the context of PROC SGPLOT?

While performing data validation checks, you are tasked with writing a SAS program that will identify all subjects who have a discrepancy in their record: the variable 'EndDate' is before the 'StartDate'. Which programming technique would be best suited to identify these subjects?

A pharmaceutical company is preparing submission materials for a new drug application. One of the key documents required by regulatory authorities is define.xml. Which of the following best describes the purpose of the define.xml file?

A clinical trial dataset contains multiple records per subject due to repeated measurements over time. You are tasked with summarizing the number of adverse events (AE) experienced by each subject, categorized by severity (Mild, Moderate, Severe), while accounting for the visit at which the event occurred. Which SAS procedure will allow you to obtain a summarized count of AEs by severity for each visit for all subjects?