04 Aug Compare two of the following types of studies: ecologic, cross-sectional, case-control, and cohort studies. Provide one example of each type of study an
2 paragraphs include reference APAformat Please respond to the following: Compare two of the following types of studies: ecologic, cross-sectional, case-control, and cohort studies. Provide one example of each type of study and make sure you include a reference for...