<prompt> Framingham Heart Study is an example of :Case control studyCohort studyCross-sectional studyInterventional study  <response>: FRAMINGHAM HEART STUDY:Is a classical example of cohort studyInitiated in 1948 by US Public Health Service at Framingham, a town in Massachusetts, USAAim: To study the relationship of risk factors serum cholesterol, blood pressure, weight,smoking to the subsequent development of cardiovascular diseases. 