In a research study can we do a prospective and retrospective study simultaneously?

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Suppose we want to establish DRL and AQD for medical imaging and in DRL we want to apply retrospective design and in AQD we want to apply prospective design .Is is possible?

Theophilus Lakiang

Yes you can, there are few studies which used a mixed prospective-retrospective designs.

Article Sequelae of Prospective versus Retrospective Reports of Adve...

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