Write a protocol for secondary data management. Use data from the U.S.CDC, WHO, National Health and Nutrition Examinations Survey( NHANES), National Health Interview Survey, BRFSS data, etc. Question: Is coronary heart disease less prevalent in adults (18+) who primarily run or jog for exercise than those who do weight lifting? In the protocol, include the study design (why), measurement ( Identify the variables, justify measurement techniques selected. Provide information regarding the validity and reliability of selected measures), detailed study procedures( methods for collecting data and for avoiding subjects risks should be included. The selected methods should be sufficiently described to justify the use of the approach for answering the defined research question.