Data Management A copy of the consent form will be sent to the Data Coordinating Center (DCC). Report forms will be sent by fax or electronically (secured/encrypted) to the DCC data entry. The data will be checked for consistency by using selected double entry where 1/10th of the entered data will be re-entered and checked for errors. Data cleaning procedures will be done using SAS with extensive program files to ensure the correctness of skip patterns and responses. After baseline information is collected and entered, an analysis will be done to confirm comparable baseline characteristics across the two groups.